"sexathon" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sex",
        "3": "athon"
      },
      "expansion": "sex + -athon",
      "name": "suffix"
    }
  ],
  "etymology_text": "sex + -athon",
  "forms": [
    {
      "form": "sexathons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sexathon (plural sexathons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "parents": [
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        },
        {
          "kind": "other",
          "name": "English terms suffixed with -athon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sex",
          "orig": "en:Sex",
          "parents": [
            "All topics",
            "Reproduction",
            "Fundamental",
            "Life",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A prolonged session of sexual intercourse."
      ],
      "id": "en-sexathon-en-noun-MkoqSnFA",
      "links": [
        [
          "sexual intercourse",
          "sexual intercourse"
        ]
      ],
      "raw_glosses": [
        "(informal) A prolonged session of sexual intercourse."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "sexathon"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sex",
        "3": "athon"
      },
      "expansion": "sex + -athon",
      "name": "suffix"
    }
  ],
  "etymology_text": "sex + -athon",
  "forms": [
    {
      "form": "sexathons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sexathon (plural sexathons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English 3-syllable words",
        "English countable nouns",
        "English entries with incorrect language header",
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        "English entries with topic categories using raw markup",
        "English informal terms",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -athon",
        "en:Sex"
      ],
      "glosses": [
        "A prolonged session of sexual intercourse."
      ],
      "links": [
        [
          "sexual intercourse",
          "sexual intercourse"
        ]
      ],
      "raw_glosses": [
        "(informal) A prolonged session of sexual intercourse."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "sexathon"
}