"slip someone a length" meaning in English

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      "expansion": "slip someone a length",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "ref": "2022, Tim Mead, Drew Hunt, Key Lime Pie and Custard",
          "text": "Amy never had nothing to complain about when I slipped her a length. She was always begging for it. Well, almost always. Why did she always have to keep going on about my breath smelling of beer when I fucked her?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have penetrative sexual intercourse with someone."
      ],
      "id": "en-slip_someone_a_length-en-verb-apuYJx1k",
      "links": [
        [
          "penetrative",
          "penetrative"
        ],
        [
          "sexual intercourse",
          "sexual intercourse"
        ]
      ],
      "raw_glosses": [
        "(slang) To have penetrative sexual intercourse with someone."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "slip someone a length"
}

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      "expansion": "slip someone a length",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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        "English lemmas",
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        "Quotation templates to be cleaned"
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      "examples": [
        {
          "ref": "2022, Tim Mead, Drew Hunt, Key Lime Pie and Custard",
          "text": "Amy never had nothing to complain about when I slipped her a length. She was always begging for it. Well, almost always. Why did she always have to keep going on about my breath smelling of beer when I fucked her?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To have penetrative sexual intercourse with someone."
      ],
      "links": [
        [
          "penetrative",
          "penetrative"
        ],
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          "sexual intercourse",
          "sexual intercourse"
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        "(slang) To have penetrative sexual intercourse with someone."
      ],
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        "slang"
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  "word": "slip someone a length"
}