"nodding donkey" meaning in English

{
  "etymology_text": "From the resemblance to a donkey with its head nodding.",
  "forms": [
    {
      "form": "nodding donkeys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nodding donkey (plural nodding donkeys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A pumpjack."
      ],
      "id": "en-nodding_donkey-en-noun-OsOp4yaY",
      "links": [
        [
          "pumpjack",
          "pumpjack"
        ]
      ],
      "raw_glosses": [
        "(informal) A pumpjack."
      ],
      "synonyms": [
        {
          "word": "horsehead"
        }
      ],
      "tags": [
        "informal"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "a pumpjack",
          "tags": [
            "feminine"
          ],
          "word": "Pferdekopfpumpe"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "a pumpjack",
          "tags": [
            "masculine"
          ],
          "word": "Nickesel"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "stanók-kačálka",
          "sense": "a pumpjack",
          "tags": [
            "masculine"
          ],
          "word": "стано́к-кача́лка"
        }
      ]
    }
  ],
  "word": "nodding donkey"
}

{
  "etymology_text": "From the resemblance to a donkey with its head nodding.",
  "forms": [
    {
      "form": "nodding donkeys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nodding donkey (plural nodding donkeys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations",
        "Terms with Russian translations"
      ],
      "glosses": [
        "A pumpjack."
      ],
      "links": [
        [
          "pumpjack",
          "pumpjack"
        ]
      ],
      "raw_glosses": [
        "(informal) A pumpjack."
      ],
      "synonyms": [
        {
          "word": "horsehead"
        }
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "a pumpjack",
      "tags": [
        "feminine"
      ],
      "word": "Pferdekopfpumpe"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "a pumpjack",
      "tags": [
        "masculine"
      ],
      "word": "Nickesel"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "stanók-kačálka",
      "sense": "a pumpjack",
      "tags": [
        "masculine"
      ],
      "word": "стано́к-кача́лка"
    }
  ],
  "word": "nodding donkey"
}