"mud duck" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mud",
        "3": "duck"
      },
      "expansion": "mud + duck",
      "name": "af"
    }
  ],
  "etymology_text": "From mud + duck.",
  "forms": [
    {
      "form": "mud ducks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mud duck (plural mud ducks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Zoology",
          "orig": "en:Zoology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "99 1",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "95 5",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Dabbling ducks",
          "orig": "en:Dabbling ducks",
          "parents": [
            "Ducks",
            "Anatids",
            "Poultry",
            "Freshwater birds",
            "Birds",
            "Livestock",
            "Vertebrates",
            "Agriculture",
            "Animals",
            "Chordates",
            "Applied sciences",
            "Lifeforms",
            "Sciences",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The northern shoveler (Spatula clypeata)."
      ],
      "id": "en-mud_duck-en-noun-PojoWSv0",
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "northern shoveler",
          "northern shoveler"
        ],
        [
          "Spatula clypeata",
          "Spatula clypeata#Translingual"
        ]
      ],
      "raw_glosses": [
        "(zoology) The northern shoveler (Spatula clypeata)."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ]
    },
    {
      "categories": [],
      "glosses": [
        "An unattractive woman."
      ],
      "id": "en-mud_duck-en-noun-nxDyE37O",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "unattractive",
          "unattractive"
        ],
        [
          "woman",
          "woman"
        ]
      ],
      "raw_glosses": [
        "(slang, derogatory, offensive) An unattractive woman."
      ],
      "tags": [
        "derogatory",
        "offensive",
        "slang"
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "mudduck"
    }
  ],
  "word": "mud duck"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "en:Dabbling ducks"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mud",
        "3": "duck"
      },
      "expansion": "mud + duck",
      "name": "af"
    }
  ],
  "etymology_text": "From mud + duck.",
  "forms": [
    {
      "form": "mud ducks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mud duck (plural mud ducks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Zoology"
      ],
      "glosses": [
        "The northern shoveler (Spatula clypeata)."
      ],
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "northern shoveler",
          "northern shoveler"
        ],
        [
          "Spatula clypeata",
          "Spatula clypeata#Translingual"
        ]
      ],
      "raw_glosses": [
        "(zoology) The northern shoveler (Spatula clypeata)."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ]
    },
    {
      "categories": [
        "English derogatory terms",
        "English offensive terms",
        "English slang"
      ],
      "glosses": [
        "An unattractive woman."
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "unattractive",
          "unattractive"
        ],
        [
          "woman",
          "woman"
        ]
      ],
      "raw_glosses": [
        "(slang, derogatory, offensive) An unattractive woman."
      ],
      "tags": [
        "derogatory",
        "offensive",
        "slang"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "mudduck"
    }
  ],
  "word": "mud duck"
}