"blackdar" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "black",
        "3": "dar"
      },
      "expansion": "black + -dar",
      "name": "suffix"
    }
  ],
  "etymology_text": "From black + -dar.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "blackdar (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -dar",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2009 June 30, BillB [username], “Re: OT: RGP KKK”, in rec.gambling.poker (Usenet):",
          "text": "I said I saw predominantly black people in those \"most dangerous neighborhoods\", and you went on and on about how race is an artificial construct, what if his grandfather was white, yada yada yada, yet now you have no problem identifying the person in the video as a \"black woman\". How is that? Is it a gift only you have? I have heard of gaydar...you must have blackdar.",
          "type": "quote"
        },
        {
          "ref": "2010 February 19, Rev. Ivan Stang [username], “Re: Nerd gal, or sex goddess in disguise?”, in alt.slack (Usenet):",
          "text": "She is pegging my High-Maintenance-dar, and my High-Maintenance-dar is almost as good as my cradar and my blackdar.*",
          "type": "quote"
        },
        {
          "ref": "2012, Touré, “Who's Afraid of Post-Blackness?: What It Means to Be Black Now”, in Free Press, published 2011, →ISBN, page 112:",
          "text": "(I'd meet her during the party and she didn't set off my Blackdar at all, so that convinced me to stop listening to my Blackdar about the hostess.)",
          "type": "quote"
        }
      ],
      "glosses": [
        "The ability to detect whether or not a person is of African ancestry by observing that person."
      ],
      "id": "en-blackdar-en-noun-Wq9VkbSX",
      "links": [
        [
          "African",
          "African"
        ]
      ],
      "raw_glosses": [
        "(slang) The ability to detect whether or not a person is of African ancestry by observing that person."
      ],
      "tags": [
        "slang",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-blackdar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/En-au-blackdar.ogg/En-au-blackdar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/En-au-blackdar.ogg"
    }
  ],
  "word": "blackdar"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "black",
        "3": "dar"
      },
      "expansion": "black + -dar",
      "name": "suffix"
    }
  ],
  "etymology_text": "From black + -dar.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "blackdar (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English slang",
        "English terms suffixed with -dar",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2009 June 30, BillB [username], “Re: OT: RGP KKK”, in rec.gambling.poker (Usenet):",
          "text": "I said I saw predominantly black people in those \"most dangerous neighborhoods\", and you went on and on about how race is an artificial construct, what if his grandfather was white, yada yada yada, yet now you have no problem identifying the person in the video as a \"black woman\". How is that? Is it a gift only you have? I have heard of gaydar...you must have blackdar.",
          "type": "quote"
        },
        {
          "ref": "2010 February 19, Rev. Ivan Stang [username], “Re: Nerd gal, or sex goddess in disguise?”, in alt.slack (Usenet):",
          "text": "She is pegging my High-Maintenance-dar, and my High-Maintenance-dar is almost as good as my cradar and my blackdar.*",
          "type": "quote"
        },
        {
          "ref": "2012, Touré, “Who's Afraid of Post-Blackness?: What It Means to Be Black Now”, in Free Press, published 2011, →ISBN, page 112:",
          "text": "(I'd meet her during the party and she didn't set off my Blackdar at all, so that convinced me to stop listening to my Blackdar about the hostess.)",
          "type": "quote"
        }
      ],
      "glosses": [
        "The ability to detect whether or not a person is of African ancestry by observing that person."
      ],
      "links": [
        [
          "African",
          "African"
        ]
      ],
      "raw_glosses": [
        "(slang) The ability to detect whether or not a person is of African ancestry by observing that person."
      ],
      "tags": [
        "slang",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-blackdar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/En-au-blackdar.ogg/En-au-blackdar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/En-au-blackdar.ogg"
    }
  ],
  "word": "blackdar"
}