"work someone's butt off" meaning in English

{
  "forms": [
    {
      "form": "works someone's butt off",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "working someone's butt off",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "worked someone's butt off",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "worked someone's butt off",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "work someone's butt off (third-person singular simple present works someone's butt off, present participle working someone's butt off, simple past and past participle worked someone's butt off)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Canadian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
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      "examples": [
        {
          "ref": "2021 June 11, Stephanie Saul, quoting Melissa Borgioli, “Two Black Students Won School Honors. Then Came the Calls for a Recount.”, in The New York Times, →ISSN:",
          "text": "Her son, Dominic, had been ranked third at the end of his junior year, but had “worked his butt off this year,” she said.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of work someone's ass off."
      ],
      "id": "en-work_someone's_butt_off-en-verb-waOKgkal",
      "links": [
        [
          "Canada",
          "Canada"
        ],
        [
          "US",
          "American English"
        ],
        [
          "work someone's ass off",
          "work someone's ass off#English"
        ]
      ],
      "raw_glosses": [
        "(Canada, US, vulgar, slang) Synonym of work someone's ass off."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "work someone's ass off"
        }
      ],
      "tags": [
        "Canada",
        "US",
        "slang",
        "vulgar"
      ]
    }
  ],
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    {
      "audio": "En-au-work someone's butt off.ogg",
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  ],
  "word": "work someone's butt off"
}

{
  "forms": [
    {
      "form": "works someone's butt off",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "working someone's butt off",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "worked someone's butt off",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "worked someone's butt off",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "work someone's butt off (third-person singular simple present works someone's butt off, present participle working someone's butt off, simple past and past participle worked someone's butt off)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "American English",
        "Canadian English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English slang",
        "English terms with quotations",
        "English verbs",
        "English vulgarities",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2021 June 11, Stephanie Saul, quoting Melissa Borgioli, “Two Black Students Won School Honors. Then Came the Calls for a Recount.”, in The New York Times, →ISSN:",
          "text": "Her son, Dominic, had been ranked third at the end of his junior year, but had “worked his butt off this year,” she said.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of work someone's ass off."
      ],
      "links": [
        [
          "Canada",
          "Canada"
        ],
        [
          "US",
          "American English"
        ],
        [
          "work someone's ass off",
          "work someone's ass off#English"
        ]
      ],
      "raw_glosses": [
        "(Canada, US, vulgar, slang) Synonym of work someone's ass off."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "work someone's ass off"
        }
      ],
      "tags": [
        "Canada",
        "US",
        "slang",
        "vulgar"
      ]
    }
  ],
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  ],
  "word": "work someone's butt off"
}