"Y-fronts" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "p"
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      "expansion": "Y-fronts pl (plural only)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
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          "kind": "other",
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            "Entries with topic categories using raw markup",
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          "name": "English pluralia tantum",
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Underwear",
          "orig": "en:Underwear",
          "parents": [
            "Clothing",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2013, Mike Peyton, Mike Peyton’s Floating Assets, page 4",
          "text": "I did the latter, so in writing this I have put it on record that I am one of the few men who has spent Christmas Eve running across a Kentish marsh in his Y-fronts with two horses trotting after him in close company.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Men's or boys' briefs that have a fly as part of an inverted Y formed by the seams."
      ],
      "id": "en-Y-fronts-en-noun-K2V8-Jgw",
      "links": [
        [
          "briefs",
          "briefs"
        ],
        [
          "fly",
          "fly"
        ],
        [
          "inverted",
          "inverted"
        ],
        [
          "Y",
          "Y"
        ],
        [
          "form",
          "form"
        ],
        [
          "seam",
          "seam"
        ]
      ],
      "raw_glosses": [
        "(plural only, British, informal) Men's or boys' briefs that have a fly as part of an inverted Y formed by the seams."
      ],
      "related": [
        {
          "word": "jocks"
        },
        {
          "word": "bibidees"
        },
        {
          "word": "bikini briefs"
        }
      ],
      "synonyms": [
        {
          "word": "underwear"
        }
      ],
      "tags": [
        "British",
        "informal",
        "plural",
        "plural-only"
      ],
      "wikipedia": [
        "briefs"
      ]
    }
  ],
  "word": "Y-fronts"
}

{
  "head_templates": [
    {
      "args": {
        "1": "p"
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      "expansion": "Y-fronts pl (plural only)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "jocks"
    },
    {
      "word": "bibidees"
    },
    {
      "word": "bikini briefs"
    }
  ],
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        "English pluralia tantum",
        "English terms derived from the shape of letters",
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        "Quotation templates to be cleaned",
        "en:Underwear"
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      "examples": [
        {
          "ref": "2013, Mike Peyton, Mike Peyton’s Floating Assets, page 4",
          "text": "I did the latter, so in writing this I have put it on record that I am one of the few men who has spent Christmas Eve running across a Kentish marsh in his Y-fronts with two horses trotting after him in close company.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Men's or boys' briefs that have a fly as part of an inverted Y formed by the seams."
      ],
      "links": [
        [
          "briefs",
          "briefs"
        ],
        [
          "fly",
          "fly"
        ],
        [
          "inverted",
          "inverted"
        ],
        [
          "Y",
          "Y"
        ],
        [
          "form",
          "form"
        ],
        [
          "seam",
          "seam"
        ]
      ],
      "raw_glosses": [
        "(plural only, British, informal) Men's or boys' briefs that have a fly as part of an inverted Y formed by the seams."
      ],
      "tags": [
        "British",
        "informal",
        "plural",
        "plural-only"
      ],
      "wikipedia": [
        "briefs"
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  "synonyms": [
    {
      "word": "underwear"
    }
  ],
  "word": "Y-fronts"
}