"slug it out" meaning in English

{
  "forms": [
    {
      "form": "slugs it out",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "slugging it out",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slugged it out",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slugged it out",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "slug it out (third-person singular simple present slugs it out, present participle slugging it out, simple past and past participle slugged it out)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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 phrasal verbs with particle (out)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with placeholder \"it\"",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1932, Robert E. Howard, Vikings of the Gloves",
          "text": "For once I'd met a man which was willing and able to stand up and slug it out with me.",
          "type": "quotation"
        },
        {
          "ref": "2021 July 22, Philip Oltermann, “Merkel’s political and scientific sides slug it out in swan song presser”, in The Guardian",
          "text": "Merkel’s political and scientific sides slug it out in swan song presser [title]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have an intense argument or fight until one side prevails."
      ],
      "id": "en-slug_it_out-en-verb-cilD14aU",
      "raw_glosses": [
        "(informal) To have an intense argument or fight until one side prevails."
      ],
      "tags": [
        "informal"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "To have an intense argument or fight until one side prevails.",
          "word": "决一雌雄"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "yījuégāoxià",
          "sense": "To have an intense argument or fight until one side prevails.",
          "word": "一决高下"
        }
      ]
    }
  ],
  "word": "slug it out"
}

{
  "forms": [
    {
      "form": "slugs it out",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "slugging it out",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slugged it out",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slugged it out",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "slug it out (third-person singular simple present slugs it out, present participle slugging it out, simple past and past participle slugged it out)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs with particle (out)",
        "English terms with placeholder \"it\"",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "1932, Robert E. Howard, Vikings of the Gloves",
          "text": "For once I'd met a man which was willing and able to stand up and slug it out with me.",
          "type": "quotation"
        },
        {
          "ref": "2021 July 22, Philip Oltermann, “Merkel’s political and scientific sides slug it out in swan song presser”, in The Guardian",
          "text": "Merkel’s political and scientific sides slug it out in swan song presser [title]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have an intense argument or fight until one side prevails."
      ],
      "raw_glosses": [
        "(informal) To have an intense argument or fight until one side prevails."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "To have an intense argument or fight until one side prevails.",
      "word": "决一雌雄"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "yījuégāoxià",
      "sense": "To have an intense argument or fight until one side prevails.",
      "word": "一决高下"
    }
  ],
  "word": "slug it out"
}