"muck in" meaning in English

{
  "forms": [
    {
      "form": "mucks in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "mucking in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "mucked in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "mucked in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "muck in (third-person singular simple present mucks in, present participle mucking in, simple past and past participle mucked in)",
      "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 (in)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "If we all muck in, we can get this room cleaned in next to no time.",
          "type": "example"
        }
      ],
      "glosses": [
        "To join in with work."
      ],
      "id": "en-muck_in-en-verb-yMXrLOLY",
      "links": [
        [
          "join in",
          "join in"
        ]
      ],
      "raw_glosses": [
        "(informal) To join in with work."
      ],
      "tags": [
        "informal"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "kantaa kortensa kekoon"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "mettre la main à la pâte"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "tags": [
            "imperfective"
          ],
          "word": "przyłączać się"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "tags": [
            "perfective"
          ],
          "word": "przyłączyć się"
        }
      ]
    }
  ],
  "word": "muck in"
}

{
  "forms": [
    {
      "form": "mucks in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "mucking in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "mucked in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "mucked in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "muck in (third-person singular simple present mucks in, present participle mucking in, simple past and past participle mucked in)",
      "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 (in)",
        "English terms with usage examples",
        "English verbs",
        "Polish links with redundant wikilinks",
        "Translation table header lacks gloss"
      ],
      "examples": [
        {
          "text": "If we all muck in, we can get this room cleaned in next to no time.",
          "type": "example"
        }
      ],
      "glosses": [
        "To join in with work."
      ],
      "links": [
        [
          "join in",
          "join in"
        ]
      ],
      "raw_glosses": [
        "(informal) To join in with work."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "kantaa kortensa kekoon"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "mettre la main à la pâte"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "tags": [
        "imperfective"
      ],
      "word": "przyłączać się"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "tags": [
        "perfective"
      ],
      "word": "przyłączyć się"
    }
  ],
  "word": "muck in"
}