"jockey strap" meaning in English

{
  "etymology_text": "Shortened form of bike jockey strap, which was subsequently further shortened to jockstrap.",
  "forms": [
    {
      "form": "jockey straps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jockey strap (plural jockey straps)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "jockstrap"
      ],
      "id": "en-jockey_strap-en-noun-CDH-CyWH",
      "links": [
        [
          "jockstrap",
          "jockstrap"
        ]
      ],
      "raw_glosses": [
        "(dated) jockstrap"
      ],
      "tags": [
        "dated"
      ],
      "wikipedia": [
        "Jockstrap"
      ]
    }
  ],
  "word": "jockey strap"
}

{
  "etymology_text": "Shortened form of bike jockey strap, which was subsequently further shortened to jockstrap.",
  "forms": [
    {
      "form": "jockey straps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jockey strap (plural jockey straps)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "jockstrap"
      ],
      "links": [
        [
          "jockstrap",
          "jockstrap"
        ]
      ],
      "raw_glosses": [
        "(dated) jockstrap"
      ],
      "tags": [
        "dated"
      ],
      "wikipedia": [
        "Jockstrap"
      ]
    }
  ],
  "word": "jockey strap"
}