"knuckle children" meaning in All languages combined

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "knuckle",
        "3": "children"
      },
      "expansion": "knuckle + children",
      "name": "af"
    }
  ],
  "etymology_text": "From knuckle + children.",
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "knuckle children pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Semen or ejaculate resulting from masturbation."
      ],
      "id": "en-knuckle_children-en-noun-XO2du-Pc",
      "links": [
        [
          "Semen",
          "semen"
        ],
        [
          "ejaculate",
          "ejaculate"
        ],
        [
          "masturbation",
          "masturbation"
        ]
      ],
      "raw_glosses": [
        "(slang, vulgar) Semen or ejaculate resulting from masturbation."
      ],
      "tags": [
        "plural",
        "plural-only",
        "slang",
        "vulgar"
      ]
    }
  ],
  "word": "knuckle children"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "knuckle",
        "3": "children"
      },
      "expansion": "knuckle + children",
      "name": "af"
    }
  ],
  "etymology_text": "From knuckle + children.",
  "head_templates": [
    {
      "args": {
        "1": "p"
      },
      "expansion": "knuckle children pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English pluralia tantum",
        "English slang",
        "English vulgarities",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Semen or ejaculate resulting from masturbation."
      ],
      "links": [
        [
          "Semen",
          "semen"
        ],
        [
          "ejaculate",
          "ejaculate"
        ],
        [
          "masturbation",
          "masturbation"
        ]
      ],
      "raw_glosses": [
        "(slang, vulgar) Semen or ejaculate resulting from masturbation."
      ],
      "tags": [
        "plural",
        "plural-only",
        "slang",
        "vulgar"
      ]
    }
  ],
  "word": "knuckle children"
}