"jack all" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "10": "",
        "11": "",
        "12": "",
        "13": "",
        "14": "",
        "15": "",
        "16": "",
        "17": "",
        "18": "",
        "19": "",
        "2": "pronoun",
        "20": "",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "7": "",
        "8": "",
        "9": "",
        "head": ""
      },
      "expansion": "jack all",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "jack all",
      "name": "en-pron"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "pron",
  "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English pronouns",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English third person pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2011, Natalie Anderson, Nice Girls Finish Last, Harlequin, page 124",
          "text": "'I hate it.' Gruff, low, rough. 'I paid off her mortgage but she refuses to take more money from me and cleaning is what she's always done. Dad left her with nothing and even before he left he just did jack all in his shed all day.'",
          "type": "quotation"
        },
        {
          "ref": "2011, Laura Hodges, The Sweet Kiss of Friendship, AuthorHouse, page 117",
          "text": "I was holding onto the idea of you and I did jack all with anyone the entire time you were gone.",
          "type": "quotation"
        },
        {
          "ref": "2013, Keri Arthur, Darkness Unmasked: A Dark Angels Novel, Penguin, page 232",
          "text": "I took another of those calming breaths that did jack all to calm, then called to the Aedh and got the hell out of there. I left the Ducati where she was—right then, I didn't particularly care if Rhoan saw it or not.",
          "type": "quotation"
        },
        {
          "ref": "2016, Joe Lycett, Parsnips, Buttered: Laugh-out-loud lockdown reading, Hodder & Stoughton",
          "text": "[…] and you did jack all about it so I propose another vote of no confidence in this website and the weak-willed, grey-suited end of bells who run it.",
          "type": "quotation"
        },
        {
          "text": "2019, Anya Allyn, Paracosm, Anya Allyn\n\"Their therapies did jack all. So we stopped all that. Lincoln's happy enough. Well, he's not unhappy.\""
        }
      ],
      "glosses": [
        "Nothing."
      ],
      "id": "en-jack_all-en-pron-nMPiT-nQ",
      "links": [
        [
          "Nothing",
          "nothing"
        ]
      ],
      "raw_glosses": [
        "(mildly vulgar, slang) Nothing."
      ],
      "synonyms": [
        {
          "word": "jack-all"
        },
        {
          "word": "fuck all"
        },
        {
          "word": "nothing"
        }
      ],
      "tags": [
        "mildly",
        "slang",
        "vulgar"
      ]
    }
  ],
  "word": "jack all"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "10": "",
        "11": "",
        "12": "",
        "13": "",
        "14": "",
        "15": "",
        "16": "",
        "17": "",
        "18": "",
        "19": "",
        "2": "pronoun",
        "20": "",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "7": "",
        "8": "",
        "9": "",
        "head": ""
      },
      "expansion": "jack all",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "jack all",
      "name": "en-pron"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English pronouns",
        "English slang",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English third person pronouns",
        "English vulgarities"
      ],
      "examples": [
        {
          "ref": "2011, Natalie Anderson, Nice Girls Finish Last, Harlequin, page 124",
          "text": "'I hate it.' Gruff, low, rough. 'I paid off her mortgage but she refuses to take more money from me and cleaning is what she's always done. Dad left her with nothing and even before he left he just did jack all in his shed all day.'",
          "type": "quotation"
        },
        {
          "ref": "2011, Laura Hodges, The Sweet Kiss of Friendship, AuthorHouse, page 117",
          "text": "I was holding onto the idea of you and I did jack all with anyone the entire time you were gone.",
          "type": "quotation"
        },
        {
          "ref": "2013, Keri Arthur, Darkness Unmasked: A Dark Angels Novel, Penguin, page 232",
          "text": "I took another of those calming breaths that did jack all to calm, then called to the Aedh and got the hell out of there. I left the Ducati where she was—right then, I didn't particularly care if Rhoan saw it or not.",
          "type": "quotation"
        },
        {
          "ref": "2016, Joe Lycett, Parsnips, Buttered: Laugh-out-loud lockdown reading, Hodder & Stoughton",
          "text": "[…] and you did jack all about it so I propose another vote of no confidence in this website and the weak-willed, grey-suited end of bells who run it.",
          "type": "quotation"
        },
        {
          "text": "2019, Anya Allyn, Paracosm, Anya Allyn\n\"Their therapies did jack all. So we stopped all that. Lincoln's happy enough. Well, he's not unhappy.\""
        }
      ],
      "glosses": [
        "Nothing."
      ],
      "links": [
        [
          "Nothing",
          "nothing"
        ]
      ],
      "raw_glosses": [
        "(mildly vulgar, slang) Nothing."
      ],
      "tags": [
        "mildly",
        "slang",
        "vulgar"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "jack-all"
    },
    {
      "word": "fuck all"
    },
    {
      "word": "nothing"
    }
  ],
  "word": "jack all"
}