"clonker" meaning in English

{
  "etymology_text": "Perhaps from clunker.",
  "forms": [
    {
      "form": "clonkers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "clonker (plural clonkers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012 March 26, Herbert Puchta, Günther Gerngross, Matthew Devitt, Get on Stage! Teacher's Book with DVD and Audio CD: 21 Sketches and Plays for Young Learners and Teens (Helbling Photocopiable Resources Series), Cambridge University Press, →OCLC, page 65",
          "text": "Get lost, you clonker!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Idiot (term of abuse)."
      ],
      "id": "en-clonker-en-noun-JsagUVZo",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "Idiot",
          "idiot#English"
        ]
      ],
      "raw_glosses": [
        "(UK, derogatory) Idiot (term of abuse)."
      ],
      "tags": [
        "UK",
        "derogatory"
      ]
    }
  ],
  "word": "clonker"
}

{
  "etymology_text": "Perhaps from clunker.",
  "forms": [
    {
      "form": "clonkers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "clonker (plural clonkers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English derogatory terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2012 March 26, Herbert Puchta, Günther Gerngross, Matthew Devitt, Get on Stage! Teacher's Book with DVD and Audio CD: 21 Sketches and Plays for Young Learners and Teens (Helbling Photocopiable Resources Series), Cambridge University Press, →OCLC, page 65",
          "text": "Get lost, you clonker!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Idiot (term of abuse)."
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "Idiot",
          "idiot#English"
        ]
      ],
      "raw_glosses": [
        "(UK, derogatory) Idiot (term of abuse)."
      ],
      "tags": [
        "UK",
        "derogatory"
      ]
    }
  ],
  "word": "clonker"
}