"Joe Who" meaning in English

{
  "etymology_text": "From a Toronto Star headline announcing Clark's unexpected rise from obscurity.",
  "head_templates": [
    {
      "args": {
        "head": "Joe Who?"
      },
      "expansion": "Joe Who?",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Politics",
          "orig": "en:Politics",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Nickname for Joe Clark (Charles Joseph Clark, born 1939), Canadian businessman, writer and politician who served as the 16th prime minister of Canada from 1979 to 1980."
      ],
      "id": "en-Joe_Who-en-name-v3ykwFt7",
      "links": [
        [
          "politics",
          "politics"
        ]
      ],
      "raw_glosses": [
        "(politics, slang) Nickname for Joe Clark (Charles Joseph Clark, born 1939), Canadian businessman, writer and politician who served as the 16th prime minister of Canada from 1979 to 1980."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "Joe Who"
}

{
  "etymology_text": "From a Toronto Star headline announcing Clark's unexpected rise from obscurity.",
  "head_templates": [
    {
      "args": {
        "head": "Joe Who?"
      },
      "expansion": "Joe Who?",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English slang",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Politics"
      ],
      "glosses": [
        "Nickname for Joe Clark (Charles Joseph Clark, born 1939), Canadian businessman, writer and politician who served as the 16th prime minister of Canada from 1979 to 1980."
      ],
      "links": [
        [
          "politics",
          "politics"
        ]
      ],
      "raw_glosses": [
        "(politics, slang) Nickname for Joe Clark (Charles Joseph Clark, born 1939), Canadian businessman, writer and politician who served as the 16th prime minister of Canada from 1979 to 1980."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "Joe Who"
}