"does Dolly Parton sleep on her back" meaning in English

{
  "etymology_text": "An allusion to the singer's large breasts, which might make sleeping on one's front difficult.",
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        "head": "does Dolly Parton sleep on her back?"
      },
      "expansion": "does Dolly Parton sleep on her back?",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
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          "name": "English entries with incorrect language header",
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        {
          "kind": "topical",
          "name": "English rhetorical questions",
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      ],
      "glosses": [
        "Synonym of is the Pope Catholic"
      ],
      "id": "en-does_Dolly_Parton_sleep_on_her_back-en-phrase-0Y~DXaf1",
      "links": [
        [
          "is the Pope Catholic",
          "is the Pope Catholic#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial, rhetorical question) Synonym of is the Pope Catholic"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "is the Pope Catholic"
        }
      ],
      "tags": [
        "colloquial",
        "rhetoric"
      ],
      "wikipedia": [
        "Dolly Parton"
      ]
    }
  ],
  "word": "does Dolly Parton sleep on her back"
}

{
  "etymology_text": "An allusion to the singer's large breasts, which might make sleeping on one's front difficult.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase",
        "head": "does Dolly Parton sleep on her back?"
      },
      "expansion": "does Dolly Parton sleep on her back?",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English colloquialisms",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English rhetorical questions",
        "English terms with non-redundant non-automated sortkeys"
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      "glosses": [
        "Synonym of is the Pope Catholic"
      ],
      "links": [
        [
          "is the Pope Catholic",
          "is the Pope Catholic#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial, rhetorical question) Synonym of is the Pope Catholic"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "is the Pope Catholic"
        }
      ],
      "tags": [
        "colloquial",
        "rhetoric"
      ],
      "wikipedia": [
        "Dolly Parton"
      ]
    }
  ],
  "word": "does Dolly Parton sleep on her back"
}