motherfucker

→ Mandarin: ㄇㄉㄈㄎ (mōdēfōkē) (Taiwan)

/ˈmʌðəˌfʌkə/

/ˈmʌðɚˌfʌkɚ/

Etymology tree
Proto-Indo-European *méh₂tēr
Proto-Germanic *mōdēr
Proto-West Germanic *mōder
Old English mōdor
Middle English moder
English mother
English fucker
English motherfucker
Compound of mother + fucker; attested since 1918. The injury comes from the implication of somebody sleeping with their own mother, but was probably not used literally until later.

etymon

For quotations using this term, see Citations:motherfucker.

(vulgar, literally) One who engages in incest with their mother.


incest

en-verb

incest (third-person singular simple present incests, present participle incesting, simple past and past participle incested)

incests (present singular third-person)
incesting (participle present)
incested (participle past)
incested (past)

From Latin incestus. Displaced native Old English mǣġhǣmed (literally “relative-sex”). Doublet of inchaste.

nc

I do not want anyone to feel that my lesbianism is a result of being incested.

1994, Kathryn Carter, Interpretive Approaches to Interpersonal Communication:

Her erotic transference ultimately devolved into a revelation that she had been consistently incested by her brother

2009, Antonino Ferro, The Analytic Field: A Clinical Concept, page 206:

[…] the most powerful of that bunch of immortal giants called Titans was Cronus, who “incested” with sister Rhea, who then birthed the Olympians (Zeus and his bunch) […]

2011, Marvin Mengeling, Crows, Pete Rose, UFOs: And Other Pretty Pieces, page 2:

(transitive, intransitive) To engage in incestuous sexual intercourse.


inbreed

en-verb

inbreed (third-person singular simple present inbreeds, present participle inbreeding, simple past and past participle inbred)

inbreeds (present singular third-person)
inbreeding (participle present)
inbred (participle past)
inbred (past)

To breed or reproduce with those that are related.


inbred

en-adj

inbred (comparative more inbred, superlative most inbred)

more inbred (comparative)
most inbred (superlative)

(often derogatory) Having an ancestry characterized by inbreeding.

sisäsiittoinen

having an ancestry characterized by inbreeding


Oedipus

From the Latin Oedipus, from the Ancient Greek Οἰδίπους (Oidípous, “swollen foot”).

der

(Greek mythology) A son of Laius and Jocasta, who unwittingly killed his father and married his mother.


sister-wife

Enmities between sister-wives will [be,] from their having known each other too intimately all their lives, more unmannerly than where they are strangers to each other

1853, quoted in Robert Cox, Sabbath Laws and Sabbath Duties, page 194:

In a polygamous marriage, a woman who is simultaneously the sister and co-wife of another.


Oedipal

(psychoanalysis) Of or relating to the Oedipus complex.


Oedipus complex

en-noun

Oedipus complex (plural Oedipus complexes)

Named after Oedipus in Greek mythology, who unwittingly killed his father and married his mother.

(psychoanalysis) In Freudian theory, the complex of emotions aroused in a child by an unconscious sexual desire for the parent of the opposite sex.


incestuous

en-adj

incestuous (comparative more incestuous, superlative most incestuous)

more incestuous (comparative)
most incestuous (superlative)

If you engaged in an incestuous relationship with a family member, that would make you an inbreeder.


twincest

This one's about gay brothers. I'm calling it Twincest. Nice, no?

1985, Joseph Hansen, A Smile in His Lifetime, New American Library, page 64:

As 'twincest' is in (a trend started by Parker Posey and Josh Hamilton in The House of Yes, to be released in the UK in 1998)...

1998, Film Review: Special: Year Book 1997/98, Visual Imagination Ltd., page 117:

These pieces you might very well be able to relate to even if you've never been horny for twincest, had an affair, or been a black man...

2007, Rachel Kramer Bussel, Best Sex Writing 2008:

In the course of one of his climbs, he hears adult voices through a high window, goes to investigate, and comes across Jaime and Cersei energetically engaged in (to use a neologism popular with fans) twincest.

2013, John Lancaster, “When did you get hooked?”, in London Review of Books, volume 35, number 7:

(chiefly fandom slang) incestuous sexual relations between twins, or siblings who look very similar.


adelphogamy

A form of polyandry where a woman is married to two or more brothers.


inbreeding

en-noun

inbreeding (countable and uncountable, plural inbreedings)

Inbreeding can result in handicapped children.

(biology) Breeding between members of a relatively small population, especially one in which most members are related.

近親繁殖

breeding between members of small population


fatherfucker

(vulgar) A generic term of abuse, similar to motherfucker.

1991, Keith Allan, Kate Burridge, Euphemism & dysphemism: language used as shield and weapon, page 134:

(neologism, literally, vulgar) One who engages in incestuous sex with their father.

She's a total fatherfucker; all of her boyfriends have been at least twice her age.

(vulgar) A woman who engages in intercourse with men much older than herself, or who has an Electra complex.


brotherfucker

Compound of brother + fucker, after motherfucker.

This hurts like a brotherfucker!

(vulgar) Motherfucker (generic term of abuse).


sisterfucker

Compound of sister + fucker. Calque of Hindustani بہن چود / बहनचोद (bahancod).

1999, Julie Coleman, Love, Sex, and Marriage: A Historical Thesaurus, page 180:

(literally, vulgar) One who engages in incestuous sex with their sister.


Electra complex

Electra complex (plural Electra complexes)

With reference to Electra of Greek mythology, who killed her mother.

(psychoanalysis) The theory that a female's psychological development involves a sexual attachment to the father and jealousy of the mother.


incestlike

en-adj

incestlike (comparative more incestlike, superlative most incestlike)

more incestlike (comparative)
most incestlike (superlative)


daughterfucker

From daughter + fucker, by analogy with motherfucker.

(vulgar, literally) One who engages in incest with their daughter.


Westermarck effect

First hypothesized by Finnish anthropologist Edvard Westermarck (1862–1939) in his book The History of Human Marriage (1891).

A hypothetical psychological effect through which people who live in close domestic proximity during the first few years of their lives become desensitized to later sexual attraction. It is one explanation for the incest taboo.


Waycest

(fandom slang) The incestuous real-person pairing of the brothers Gerard Way and Mikey Way, of American rock band My Chemical Romance, in slash fan fiction.


Wincest

From Win(chester) + -cest. Possibly influenced by wincest.

Wincest stories often take their transgressive cues from the text itself; often when Sam and Dean are seducing each other in Wincest stories, the more reluctant of the two is convinced to engage in the relationship when the other reiterates that they are already outsiders in society, already isolated from the “normality” of their world—why should the prohibition of incest stand in their way when they have already broken so many other laws?

2009, Emily Turner, "Scary Just Got Sexy: Transgression in Supernatural and Its Fanfiction", in In the Hunt: Unauthorized Essays on Supernatural (ed. Supernatural.tv), BenBella Books (2009), page 159

Instead, she suggests, the romanticized, paratextual Wincest slash fiction offers Sam and Dean a redemptive happiness that they are perpetually denied by the show's writers both in a diegetic sense (via Chuck Shurley, the show's writer/prophet who publishes novels based on the boys' adventures) and in a non-diegetic sense (via Eric Kripke, Sera Gamble, and the show's returning writers).

2011, Darren Elliott-Smith, “'Go Be Gay for That Poor, Dead Intern:' Conversion Fantasies and Gay Anxieties in Supernatural”, in Stacey Abbott, David Lavery, editors, TV Goes to Hell: An Unofficial Road Map of, Supernatural , ECW Press, →ISBN, page 106:

Supernatural fandom features some of the more controversial iterations of slash, predominantly Wincest (the incestuous coupling of the show's protagonists, the Winchester brothers), […]

2013, Henry Jenkins & Suzanne Scott, "Textual Poachers, Twenty Years Later", in Henry Jenkins, Textual Poachers: Television Fans and Participatory Culture, Routledge (2013), page xxxiii

(fandom slang) The incestuous slash ship of the fictional brothers Dean and Sam Winchester from the television series Supernatural.


inbreeder

[…] inbreeder! Go home and screw your sister!

2008, Nico Medina, Fat Hoochie Prom Queen, page 130:

Those stereotypes of you backwoods gun fondlers being incestuous inbreeders didn't come to be on account of me.

2013, JohnMcvie, “Re: MSNBC's 'NewsNation' Uses Chicago Gang Violence To Again Push For Gun Control”, in talk.politics.guns (Usenet):


brother-husband

Coordinate term: sister-wife

Dala Kumara was seized by a deep passion; he carried his sister away to the forest and lived with her there, subsisting on wild foods. One day, when her brother-husband was away, Giri Devi ran away and hanged herself from some forest vines.

1996, Allen W. Johnson, Douglass Richard Price-Williams, Oedipus Ubiquitous: The Family Complex in World Folk Literature, →ISBN, page 188:

According to the Pyramid Texts — a collection of prayers, hymns, and spells for the dead — Isis foresaw the murder of her brother-husband and mourned for him before the event.

2005, Gods, Goddesses, and Mythology - Volume 6, →ISBN, page 764:

King Purukutsa could never forget that his queen was his younger sister, on of his own blood. They didn't beget any children. Purukutsani who was also an equally rightful claimant to the royal household ruled the kingdom like a real queen, all the reins of the state, which were formally with her elder brother-husband, securely in her hands.

2006, Shankar Mokashi-Punekar, Awadheswari, →ISBN, page 1:

Rufous Rudra Silvercloud, Bodiless Byron's firstborn son, his Beast Master, also his Storm Lord; - brother-husband to sister-wife Umashakti; - joint devic over-ruler of the former Weirdom of Kanin City when the ever-expanding Empire of Lathakra reached its walls; rather than either surrendering or fighting the Thanatoids and their allies, including the Unity of Chaos, he joined them.

2011, Jim McPherson, The Death's Head Hellion: Sedonplay, 4824/25 Year of the Dome, →ISBN:

A man who is simultaneously brother and husband to his wife.


genetic sexual attraction

A claimed phenomenon of sexual attraction between relatives and family members who were not raised together.


wincest

Oh I see, so if they were over the age of 18 you wouldn't be having "wincest" with them as you put it, huh?

2009 October 22, Onideus Mad Hatter [username], “Re: Tomba's pedo website ...ripe for hacking”, in alt.support.boy-lovers (Usenet):

5. Powerpuff Girls wincest (It's basically an act of hot sex between family members, which makes it WINcest according to www.urbandictionary.com).

2009 October 27, Ashleigh Johnson, “Playboy steals the Internet's idea”, in The Daily Titan, volume 85, number 27, California State University, Fullerton, page 6:

(slang, with a positive connotation, originally anime, fandom slang) incest, usually of two siblings.


cousinfucker

(literally, vulgar) One who engages in incestuous sex with one's cousin.


aunt fucker

And one has to wonder about the difference between “aunt fucker” and […]

2003, Fatha Jack, Re: We is all Africans, innit, group: alt.religion.wicca
Fuck off, racist. hes a missouri aunt fucker!

2001, sumbeotch, Re: DEVILDOG AND HIS FLUNKIES, group: alt.elvis.king
OH and take those kotex folding aunt fuckers with you ok?

So in Catholic Brazil you'll get references to the Holy Mother; in Asian cultures, where the family is honoured, you get outbursts like 'shitty grandma' or 'aunt fucker'.

(vulgar, offensive, rare) Motherfucker (generic term of abuse).


sibling fucker

2001, rick, Re: Lindros hit Group: alt.sports.hockey.nhl.phila-flyers
Has nothing to do with bandwith, you sibling fucker.

2004, trafferty, Re: Birthday Blues :-( Group: alt.horror
Now, go back to banjo pickin' on the front porch you rotten-toothed sibling fucker.


sisterfuck

What do you expect from an inbred sisterfuck moron?

1999, Hammer, “So Where's that ol' Texas Twit this evening...?”, in alt.flame.hammer (Usenet):

i don't have to take that kinda shit offa sacka sisterfuck like me

1997, Jumpin Jehosephat, “narcolepsy”, in bit.listserv.fnord-l (Usenet):

Why did that sisterfuck CM obey the Kampani

2009, Indra Sinha, Animal's People, page 112:

Your sisterfuck niggers?

2014, Stephen Solomita, Keeplock: A Novel of Crime:


incestism

1997, Leper Messiah, Re: Adam + Eve=Incest committed by their children Group: talk.religion.misc
So are you admitting God instructed Adam and Eve's children to engage in incest? Directed them on the path to "incestism"? Is such a God worthy of worship?

In 1960-64, the Leader's editor late Rameshwar Nath Jutshi did not allow the use of word 'rape' to appear in it. Stories relating to incestism ones were strictly forbidden during his time.

2001, Shiva Dubey, Kumbh City Prayag - Page 127

2006, psycho hatchet, Re: Your Majesty, the peasants Group: soc.penpals
[…] is that a redneck symbol? or a gesture of incestism? I dunno, ask Blaze though. If he is your Hero.


incestic

incestic (comparative more incestic, superlative most incestic)

more incestic (comparative)
most incestic (superlative)

2011, appleton schneider, THE AMAZING TRAVELS OF CERRJIN DY
That a problem is a premise to be expanded upon, interacted with, recognized as prima facie rather than symbolic or suppressive of some erotic or castratic or incestic syndromatology.

2004, black death CHRISTIANS BORN AGAIN OR BORN AGAIN ASSOLES Group: soc.culture.indian
incestic intolarant ingnorant people (present day they are called christian) made him a god and a stupid mean reglion with bible which is basically a book mainly containing story from other religion

2004, tidd, Re: A man named McNameter Group: alt.jokes.limericks
I sat at the table, domestic, And ponered a session incestic. What rhythm to try, With young cousin Di, Trochaic or p'raps anapestic

(rare, nonstandard, proscribed) Of, or relating to incest


incestophobia

Meaningful discriminations on the basis of age ("pedophobia"), genetics ("incestophobia"), species ("zoophobia") and yes, sex ("homophobia")

2000, Christopher watson, “Re: Liberate a "Yes on 22" sign today.”, in ba.motss (Usenet):

In light of this, why shouldn't we repent of our incestophobia and dogophobia?

2003, Dana Prescott, “Re: Watch The "Fundies" Fidget!”, in alt.religion.christian.episcopal (Usenet):

[…] attribute the opposition to incest to a phobia--but not the same phobia. great. we'll call it incestophobia and move on. i thought that presented a problem for a poster who was describing opponents of gay marriage as "phobes" but himself

2009, Enos Penvy, “re: is homosexuality genetic? ask the ancient greeks”, in alt.politics.homosexuality (Usenet):

(rare) Fear, dislike or hatred of incest.


incestophobe

Anyway, we might as well get used to brothers and sisters screwing. If their proponents are half as successful as the "gay" lobby, in twenty years time we'll be called judgemental incestophobes for thinking it's weird.

1998, BJ, “Slow Moving Incest Guy”, in alt.fan.jerry-springer (Usenet):

Are the current incest laws the work of bigoted incestophobes?

1997, Laughing Wolf, “Re: Homosexual Education - Taxpayers beware”, in soc.culture.australian (Usenet):

What we face, though, is the influence of the incestophobes, who have a powerful lobby and try to persuade people some love can be "wrong." These people have no souls. They are bigots who are threatened by sex, change, love, freedom and sugar-free diet drinks. They quote a Bible that is full of contradictions […]

2004, frog, “MARRIAGE - IT'S ALL ABOUT THE LOVE”, in alt.politics.bush (Usenet):

Otherwise, anyone who opposes incest is an incestophobe and an opponent of bestiality is damned a zoophobe. This is hardly mature debate. Nonetheless, the government addressed this issue with more objectivity and sense.

2009, Daniel Koh, Issues of Law and Justice in Singapore, page 214:

(rare) A person who is opposed to incest (in contexts where such people are suggested to be bigoted).


anti-incest

anti-incest (comparative more anti-incest, superlative most anti-incest)

more anti-incest (comparative)
most anti-incest (superlative)

The mistake on the part of the anti-incest taboo protagonists is not their insistence that we recognize the conventional features of our social arrangements […]

1990, Jean Elshtein, Power Trips and Other Journeys:

Of course, most systems have some failure rate — incest does occur, because innate behaviors direct rather than dictate (chimps also have an occasional anti-incest failure).

2005, Dale Guthrie, The Nature of Paleolithic Art, page 449:

Even when we're at our most arbitrary and forgetful of our own stance, we remain antibestiality and anti-incest.

2012, Tracy Morrissey, Pot Psychology's How to Be:


incestophile

You of course might be a bit jealous of any family at all, since you are an orphan after all. SO you finally admit it. You are an incestophile. Where in the Hell do I admit that, you silly little bitch?? Show me. Besides, you're the one who continually makes references and direct remarks about incest

2001, Alex Cain, Re: Alex Cain is..............exposed Group: rec.sport.pro-wrestling

So you'd say that paedophilia is "normal" to a Paedophile and incest is normal to an incestophile? Murder is normal for a murderer, too, I suppose? So in the end, words have no meaning. For someone who has just produced "incestophyle" to then whine that words have no meaning is grotesque without being funny.

2002 Ward Stewart, Re: Christophobia Group: alt.atheism

That's how you think it should be, but that is not the way it is. Gays are a recognized minority class. Polygamists and Incestophiles (??) aren't.

2004 Odinn, Re: End Of Debate! (yeah, right... ;) Group: rec.motorcycles

Romer applied a "tougher" rational basis standard (what O'Connor called "a more searching form of rational basis."). Assuming that standard applies to gays, but not to polygamists or incestophiles (??), the state easily withstands challenges to bans on group marriage on consanquinity because of the lower standard.

2005 Josh Rosenbluth, Re: Gay "marriage" is not a "right" Group: alt.politics.homosexuality

Are you an incestophile? Hoping that a more permissive gov't stance on gay issues will lead to more freedoms for you in matters of incest? If so, you should be out there building your base and trying to gain public acceptance for your cause.

2005 Obwan, Re: Tell your kids to bend over and spread their cheeks! Group: or.politics


incestophilia

Children show erotic ties to parents and brothers and sisters, though not before 4–6 years of age. Infantile incestophilia is manifested by sensations and phantasies; incestuous acts, even sexual acts, may occur among brothers and sisters.

1922, International Medical and Surgical Survey: Urology:

For example, there seems to actually be a disinclination to mate with a near relative (given alternatives) (and yes, various forms of incestophilia abound, but still). But it also seems not to be based on any perception of relatedness, at least not in humans, but rather on whether you were brought up together.

2005, Dave Goldman, “Incest & genetics (was Re: Well-written good to evil conversions?)”, in rec.arts.sf.written (Usenet):


unclefucker

(vulgar, literally) One who engages in incest with their uncle.


Weasleycest

Unlike Weasleycest, which has spread across the fandom like kudzu, Malfoycest has always been more difficult to find, and its writers a bit more secretive.

2007, Catherine Tosenberger, "Potterotics: Harry Potter Fanfiction On The Internet", dissertation submitted to the University of Florida, page 151

Although, in Weasleycest, incestuous stories with all members and possible pairings engaging in sexual acts can be found, the most popular pairing by far is George and his twin Fred.

2010, Sigrid Sindhuber, "Slashing Harry Potter: The phenomenon of border-transgression in fan fiction", thesis submitted to the University of Vienna, page 93

And if you just want to come reminisce about the glory days of Weasleycest and your early exposure to Flowers in the Attic, that’s fine too!

2012, "Family Relationships in Fanfic [Keeping It in the Family]", Wincon 2012 programme, page 21

(fandom slang) Any ship involving members of the Weasley family from the Harry Potter series in an incestuous relationship.


pseudoincest

(Moore explains, for instance, that in 2015, pseudoincest porn was a popular genre.)

2016, Shira Tarrant, The Pornography Industry: What Everyone Needs to Know, page 37:

The very week my sock puppet author frenemy Lexi Wood released her stepdaddy/stepdaughter novella Dance for Daddy, Salome, Amazon started banning “pseudoincest” erotica.

2017, Giselle Renard, How to Fail Miserably at Writing, unnumbered page:

Pornography or erotica focused on sexual situations between nonconsanguineous relatives.


incestualist

Andrew Sullivan attacks the first premise by arguing that PIB and homosexuality are importantly different, because there are “constitutional” homosexuals, but not constitutional polygamists, “incestualists,” or “bestialists.”

2005, J Corvino, Homosexuality and the PIB Argument:

2005, Uncle Davey, Re: To those who CONTINUE to attack Dr Gastrich Group: talk.origins
OK, Aaron, what about a parade of necrophiliac incestualists next to your front door every other weekend? Gonna tolerate that?

(nonstandard, rare) One who engages in incest.


inbreeding depression

en-noun

inbreeding depression (plural inbreeding depressions)

(biology) The reduced biological fitness in a given population as a result of inbreeding.


fauxcest

Even when sites get their targeting right, they might still have a financial interest in drawing in a demographic that is not you. If Pornhub is targeting more women (as they say they are), they might try pushing more story-heavy movies — which today often means fauxcest.

2016 July 14, Mark Hay, “Datagasm”, in Aeon:

The field of nominees for “Best Taboo Relations Movie” was teeming with fauxcest films, and Keep It in the Family — a series of explicit vignettes directed by Jacky St. James that feature stepfamily members getting it on — come out on top.

2016 February 9, Lynsey G, “Why Women Watch “Fauxcest” Porn”, in Refinery29:

Leading adult content providers GameLink.com reported a 178 percent average increase in the consumption of “family role-play porn,” while 1 in 10 purchases made by young adults on the site were for fauxcest titles.

2017 May 5, Aurora Snow, “‘Fauxcest’: The Disturbing Rise of Incest-Themed Porn”, in The Daily Beast:

"Fauxcest" porn is taboo — but it goes much deeper than that.

2020 August 10, Anna Iovine, "The disturbing underbelly of the 'step' porn trend" on Mashablehttps://mashable.com/article/step-porn-incest-videos-pornhub/

Further, after news outlets began reporting on the rise of fauxcest porn in 2015, 39 images suggesting fauxcest began to appear in mainstream media.

2023, Bernadette Barton, The Pornification of America, page 76:

Incest pornography wherein the actors are not actually related, but are merely engaging in roleplay.


cousincest

(rare, slang, vulgar) Sexual relations between cousins.


proincest

en-adj

proincest (comparative more proincest, superlative most proincest)

more proincest (comparative)
most proincest (superlative)


sibcest

There's no word yet on if this modern-day version of Cruel Intentions will have any sibcest, but if Cruel Intentions is any indication, this series will be sure to have some jaw-dropping moments.

2015 October 22, Khadija Dukes, “Cruel Intentions TV Series In the Works”, in Paste Magazine:

Sibcest! Orgasms! Annalise picking out sexy dresses! Sex was on everyone’s minds this week, and not just because of the case-of-the-week’s client in peril: a holistic sex worker who founded her own sex party-throwing clinic, only to be put on trial when one of her clients has a heart attack mid-coitus.

2015 October 9, Marc Sneticer, “'How to Get Away with Murder' recap: 'It's Called the Octopus'”, in Entertainment Weekly:

This coerced sibcest plotline is seriously disturbing, and paints Jenna as one of the show's most disturbed villains.

2015 November 30, Kaitlin Reilly, “11 Times 'Pretty Little Liars' Got A Little Weird, Because We Can Never Forget Those Masks”, in Bustle:

The Keating clan did make headway on the Hapstall case, though; Catherine (Amy Okuda) is a virgin, meaning she isn’t sleeping with her half-brother and the term “sibcest” can be put to rest.

2015 October 16, Dana Rose Falcone, “How to Get Away With Murder’s Billy Brown on ‘Skanks Get Shanked’”, in Entertainment Weekly:

The modern day adaptation of Jane Austen's Emma is sprinkled with romance (how cute are Cher and Josh, despite the step-sibcest thing?

2016 January 27, Kaitlin Reilly, “17 Movies On Netflix To Watch If You're Single This Valentine”, in Bustle:

(rare) Sexual or romantic relations between siblings.


sonfucker

From son + fucker, by analogy with motherfucker.

(vulgar) One who engages in incest with their son.


consanguinamory

From Latin consanguinitas (“blood-relationship”) + amor (“love”) + -y, coined by activist Cristina Shy.

Most US states still have laws against consensual incest (consanguinamory), and in most of them, people do continue to be prosecuted for simply loving each other. Laws against gay sex have been struck down by the Supreme Court. So, gay sex is legal nationwide, consanguinamory isn't.

2012 September 11, “Hollywood director places incest alongside gay marriage”, in San Diego LGBT Weekly:

Consanguinamory (consensual adult incest) is not a crime in the US states of New Jersey and Rhode Island and there has been no problem as a result.

2015 August 17, Endrik Wilhelm, “Lawyer: 'Legalize incest!'”, in Deutsche Welle:

"Consanguinamory," is Shy's term for incestuous relationships, which she says should be legalized and recognized as "marriage."

2016 August 18, James B., “Mother Willing to go to Jail in Fight For Sexual Relationship With Son”, in The Christian Post:

Their founders call themselves advocates and use the word "consanguinamory" to name what they argue is a sexual orientation. They're very up-front about their goal. They want to normalize what they call "consensual" incest and even speak as if their plight were the same as that of other groups who have historically been marginalized for their sexual identity. One day they'll have a float at Pride, or at least they deserve one. They write as if they were sexual minorities who need law and culture changes to protect their marginalized desire, and in forums members adapt language from LGBTQ activism: think "consang-positive," "love is love," and "equal rights".

2022, Finding Normal: Sex, Love, and Taboo in Our Hyperconnected World, St. Martin's Publishing Group, →ISBN:

Still in the dark fringy margins are the other two groups who, like polyamorists, have their own spanking new euphemistic names. Those who are in sexual relationships with close relatives have renamed incest "consanguinamory."

2022 February 4, “Incest and Pedophilia Comin’ to Town”, in Family Institute lIlinois:

(neologism, euphemistic) Romantic and/or sexual love between family members; consensual adult incest.


auntcest

(slang, rare, vulgar) Sexual relations with one's aunt.


consanguinamorous

consanguinamorous (comparative more consanguinamorous, superlative most consanguinamorous)

more consanguinamorous (comparative)
most consanguinamorous (superlative)

[…] other “lifestyle choices,” including zoophilia, consanguinamorous relationships, necrophilia, pedophilia, polygamy, and every other “fluid” sexual preference or identification […]

2021, Melissa R. Michelson, Brian F. Harrison, LGBTQ Life in America: Examining the Facts, page 51:

(rare) Of or pertaining to consanguinamory.


J/C

Initialism from the names Janeway and Chakotay.

(Had I missed "Elogium" I would have oh-so-little material for the J/C crusade!)

1995 December 1, schlock, “STARDIARY #6: MAYBE IT'S TIME TREKKERS WENT *ON STRIKE*.”, in alt.startrek (Usenet):

I am thinking of starting an all-ages list for J/C fans […]

1998 October 6, MsSpooky83, “OT-J/C mailing list?”, in alt.startrek (Usenet):

Christine says this is possibly her last J/C fic, but I seriously hope it's not as her 'voice' in VOY fic is truly memorable.

2013 March 29, ASC Awards, “ASC Awards Comment Digest #246 Janeway/Chakotay”, in alt.startrek.creative (Usenet):

(fandom slang) The ship of characters Kathryn Janeway and Chakotay from the television series Star Trek: Voyager.


Jonerys

Leaked pictures show actors Emilia Clark^([sic]) and Kit Harrington^([sic]) on set together, meaning that their paths are finally going to cross and, let’s face it, we’ve all been shipping Jonerys (and we can just ignore Jon’s real parentage. Ahem).

2017 July 11, Jadie Troy-Pryde, “Daenerys’ list of admirers is out of control in Game of Thrones season 7”, in Marie Claire:

The episode description of the season finale, titled The Dragon And The Wolf, points in that direction as well, with a subtle hint about a steamy 'Jonerys' moment.

2017 August 27, Kabita Maharana, “Jon Snow and Daenerys sex scene teased in Game of Thrones season 7 finale description”, in International Business Times:

Jonerys offspring to be named later

2019, Jeremy Egner, "Who will win 'Game of Thrones'? Here are the favorites", The Daily Mail (Greene Country, New York), 20-21 April 2019, page C2

(fandom slang) The ship of characters Jon Snow and Daenerys Targaryen from the A Song of Ice and Fire novel series and its television adaptation Game of Thrones.


Jonsa

Jon Snow and Sansa Stark, dubbed "Jonsa," is a widely discussed pairing among Game of Thrones fans, despite their dubious half-sibling / cousin status […]

2019 April 10, Benjamin Fearnow, “Jamie x Brienne, Gendrya and Jonsa: The Weird and Wild Couples 'Game of Thrones' Fans Want to See Get Together”, in Newsweek:

The moment sets the relationship between Jon and Sansa (Jonsa) at tension with the relationship between Jon and Dany (Jonerys).

2019 April 15, Henry McKenna, “Is Sansa Stark in love with Jon Snow?”, in USA Today:

Jonsa fans, convinced that Jon was just pretending to fancy Daenerys for political gain, went searching for subtextual support for their theories.

2019 April 21, Joanna Robinson, “The Game of Thrones Fan War Only George R.R. Martin Saw Coming”, in Vanity Fair:

(fandom slang) The ship of characters Jon Snow and Sansa Stark from the A Song of Ice and Fire novel series and its television adaptation Game of Thrones.


head

the family that sleeps together keeps together

Parody of the family that prays together stays together. Originally coined by Hugh Heffner in the 1960s to refer to the way sexual intimacy creates bonds between a married couple, the phrase was adopted by others who reinterpreted it to refer to incest.

In such families incest serves to protect its members against separation anxiety (Eist and Mandel 1968; Gutheil and Avery 1977; Woodbury and Schwartz 1971). Their motto would probably be "The family that sleeps together keeps together."

1984, Amnon Carmi, Hanita Zimrin, Child abuse, page 135:

The family that sleeps together keeps together! In short: A bold but academically challenged German undresses an unconscious Valkyrie, and finds it a whole lot scarier than killing a singing dragon.

2001, Robert Thicknesse, Simon Key, The Times Opera Notes: An Accessible Yet Scholarly Guide to Over 90 Major Operas, page 153:

Family Theatre's maxim "The family that prays together stays together," could apply to Falcon Crest if "prays" were changed to "preys." “The family that sleeps together keeps together” is another possibility. At least the intermarrying is not as bizarre as it is in Wagner's The Ring of the Nibelungs, in which Siegmund commits both incest and adultery with his married sister, Sieglinde, and their son Siegfried takes his aunt Brünhilde as his wife.

2014, Bernard F. Dick, The President’s Ladies: Jane Wyman and Nancy Davis, page 236:

(humorous) A supposed motto describing the dynamics of incest.


Thorki

This book is not a work of fan fiction, nor a book of spells. There are no runes for casting nor Thorki weddings to attend.

2015, Pepi Valderrama, Geek Anthropology of Loki's Army, page 7:

The images of Thorki […] represent a range of implied possibilities between the characters--from romantic longings to more explicit imagery.

2015, Matthew Alan Cicci, "Turning The Page: Fandoms, Multimodality, And The Transformation Of The 'Comic Book' Superhero", dissertation submitted to Wayne State University, page 91

Some fans of the couple of Thorki are from a Marvel fan circle, which also belongs to the Western culture fan circles; however, some Asian culture fans will also be interested due to the fact that Thorki reflected a seme-uke couple pattern of a muscular and straightforward seme and a tsundere cunning uke.

2019, Nishang Li, "'Rotten Culture': From Japan to China", thesis submitted to the University of Victoria, pages 51-52

(fandom slang) The incestuous ship of adoptive brothers Thor and Loki from the Marvel Cinematic Universe.


Malfoycest

Unlike Weasleycest, which has spread across the fandom like kudzu, Malfoycest has always been more difficult to find, and its writers a bit more secretive.

2007, Catherine Tosenberger, "Potterotics: Harry Potter Fanfiction On The Internet", dissertation submitted to the University of Florida, page 151

The most popular pairing within Malfoycest is Lucius/Draco.

2010, Sigrid Sindhuber, "Slashing Harry Potter: The phenomenon of border-transgression in fan fiction", thesis submitted to the University of Vienna, page 93

Further, it is striking that with the exception of Malfoycest (Draco/Lucius, Draco/Narcissa, Draco/Scorpius) and the Pottercest pairings involving Harry and his future children (23 out of 62), the majority of incest stories take place between siblings (875 out of 1,065—82 percent).

2014, Vera Cuntz-Leng, “Twinship, incest, and twincest in the Harry Potter universe”, in Transformative Works and Cultures, volume 17:

(fandom slang) Any ship involving members of the Malfoy family from the Harry Potter series in an incestuous relationship.


pseudoincestuous

en-adj

pseudoincestuous (comparative more pseudoincestuous, superlative most pseudoincestuous)

more pseudoincestuous (comparative)
most pseudoincestuous (superlative)

Another development of what might be termed a pseudoincestuous situation is described by Pamela Frankau in Ask Me No More, where there is an involvement between a woman and her ex-husband's son.

1963, Donald Webster Cory, Robert E. L. Masters, editors, Violation of Taboo: Incest in the Great Literature of the Past and Present, page 17:

However, married to Lolita’s mother, he has forfeited any claim to real affection by his pseudoincestuous violation of the bond between child and stepfather which has deprived Lolita of her childhood.

1998, Paul Schellinger, editor, Encyclopedia of the Novel, volume 1, page 779:

This aspect of the narrative introduces not only a kind of oedipal theme but also a pseudoincestuous relationship with Fujitsubo, the new favorite of Genji’s father, the emperor, after Kiritsubo’s death.

2010, Tomoko Aoyama, Judy Wakabayashi, “Identity and Relationships in Translated Japanese Literature”, in Carol Maier, Françoise Massardier-Kenney, editors, Literature in Translation: Teaching Issues and Reading Practices, page 106:

Of, related to, or involving pseudoincest.


Loudcest

(fandom slang) Incestuous shipping of The Loud House characters, particularly those from the Loud family, most notably Lincoln Loud and any of his sisters.


siscon

en-noun

siscon (countable and uncountable, plural siscons)

Borrowed from Japanese シスコン (shisukon), from clipping of シスターコンプレックス (“sister complex”). By surface analysis, sis (“sister”) + -con (“abnormal sexual attraction”).

surf

(anime, manga, uncountable) Strong attachment or romantic/sexual attraction to one's own sister.

(anime, manga, countable) A person with such an attachment.


Elsanna

Ultimately, Elsanna femslash considers the repressive power of sexual taboo insofar as it can reject that power, electing instead, as Elsa's character sings in the film's coming-out scene par excellence, to "let it go."

2019, Sara K. Howe, Susan E. Cook, “Introduction: Entering the Fringe”, in Sara K. Howe, Susan E. Cook, editors, Representing Kink: Fringe Sexuality and Textuality in Literature, Digital Narrative, and Popular Culture, page 11:

Fans of the show Supernatural have created digitally manipulated images of its two male leads, the Wincester brothers, in bed together (aka “Wincest”), and fan-fiction stemming from the popular children’s film Frozen (2013) casts the two sisters, Elsa and Anna, as lovers (aka “Elsanna”).

2019, Lara Karaian, “Relative Lust: Accidental Incest’s Affective and Legal Resonances”, in Law, Culture and the Humanities, volume 15, number 3, pages 8–9:

While other male/male fan pairings were referred to more often than elsanna, it was the first and only female/female pairing that I came across during my search.

2021, Victor Larsen, "'It Makes Me, A Minor, Uncomfortable': Media and Morality In Anti-Shippers' Policing of Online Fandom", thesis submitted to Ghent University, page 43

(fandom slang) The incestuous ship of the fictional sisters Elsa and Anna from the Frozen franchise.


Stridercest

I'm writing Stridercest fic holla if you wanna read it when i am done

2012 June 24, que snacky, snacky (@badsnacks), Twitter:

I think one of the grossest Homestuck ships is Stridercest because of the fucked-up power dynamic.

2013 June 7, godless neutrois (@the_stars_abide), Twitter:

Are we going to ignore the fact that almost everyone in Homestuck shipped Stridercest?

2015 March 26, HealthcareBoywife (@das_uberchicken), Twitter:

(fandom slang) The incestuous ship of brothers Dave Strider and Dirk Strider from the Homestuck series.


-cest

(informal) A suffix combined with a noun or surname to create a word for incest or an inappropriate relationship involving the referent(s).


pro-incest

en-adj

pro-incest (comparative more pro-incest, superlative most pro-incest)

more pro-incest (comparative)
most pro-incest (superlative)


head

the family that lays together stays together

Variant of the family that sleeps together keeps together.


brocon

en-noun

brocon (countable and uncountable, plural brocons)

(anime, manga, uncountable) Strong attachment or romantic/sexual attraction to one's own brother.


sistercon

sistercon (countable and uncountable, plural sistercons)