"need one's head examined" meaning in English

{
  "etymology_text": "Facetiously suggesting that a person has mental issues and should see a doctor.",
  "forms": [
    {
      "form": "needs one's head examined",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "needing one's head examined",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "needed one's head examined",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "needed one's head examined",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "need one's head examined (third-person singular simple present needs one's head examined, present participle needing one's head examined, simple past and past participle needed one's head examined)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "You paid how much for that piece of junk? You need your head examined!",
          "type": "example"
        }
      ],
      "glosses": [
        "Indicating that a person is very foolish, or making a stupid decision."
      ],
      "id": "en-need_one's_head_examined-en-verb-qrrdWiRJ",
      "raw_glosses": [
        "(slang) Indicating that a person is very foolish, or making a stupid decision."
      ],
      "related": [
        {
          "word": "need one's eyes checked"
        }
      ],
      "synonyms": [
        {
          "word": "need one's bumps feeling"
        }
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "need one's head examined"
}

{
  "etymology_text": "Facetiously suggesting that a person has mental issues and should see a doctor.",
  "forms": [
    {
      "form": "needs one's head examined",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "needing one's head examined",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "needed one's head examined",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "needed one's head examined",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "need one's head examined (third-person singular simple present needs one's head examined, present participle needing one's head examined, simple past and past participle needed one's head examined)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "need one's eyes checked"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English slang",
        "English terms with usage examples",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "You paid how much for that piece of junk? You need your head examined!",
          "type": "example"
        }
      ],
      "glosses": [
        "Indicating that a person is very foolish, or making a stupid decision."
      ],
      "raw_glosses": [
        "(slang) Indicating that a person is very foolish, or making a stupid decision."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "need one's bumps feeling"
    }
  ],
  "word": "need one's head examined"
}