"dinner man" meaning in English

{
  "etymology_text": "Based on dinner lady. This was traditionally a female occupation.",
  "forms": [
    {
      "form": "dinner men",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "dinner men"
      },
      "expansion": "dinner man (plural dinner men)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Occupations",
          "orig": "en:Occupations",
          "parents": [
            "People",
            "Work",
            "Human",
            "Human activity",
            "All topics",
            "Human behaviour",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A man employed to serve food in a school or work canteen."
      ],
      "id": "en-dinner_man-en-noun-333xj5pS",
      "links": [
        [
          "canteen",
          "canteen"
        ]
      ],
      "raw_glosses": [
        "(British, informal) A man employed to serve food in a school or work canteen."
      ],
      "tags": [
        "British",
        "informal"
      ]
    }
  ],
  "word": "dinner man"
}

{
  "etymology_text": "Based on dinner lady. This was traditionally a female occupation.",
  "forms": [
    {
      "form": "dinner men",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "dinner men"
      },
      "expansion": "dinner man (plural dinner men)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Occupations",
        "en:People"
      ],
      "glosses": [
        "A man employed to serve food in a school or work canteen."
      ],
      "links": [
        [
          "canteen",
          "canteen"
        ]
      ],
      "raw_glosses": [
        "(British, informal) A man employed to serve food in a school or work canteen."
      ],
      "tags": [
        "British",
        "informal"
      ]
    }
  ],
  "word": "dinner man"
}