"knight of the green cloth" meaning in English

{
  "etymology_text": "An allusion to the green cloth that covers a gaming table.",
  "forms": [
    {
      "form": "knights of the green cloth",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "knights of the green cloth"
      },
      "expansion": "knight of the green cloth (plural knights of the green cloth)",
      "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Gambling",
          "orig": "en:Gambling",
          "parents": [
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A gambler."
      ],
      "id": "en-knight_of_the_green_cloth-en-noun-N-d-Kunj",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "gambler",
          "gambler"
        ]
      ],
      "raw_glosses": [
        "(dated, humorous, colloquial) A gambler."
      ],
      "synonyms": [
        {
          "word": "knight of the green baize"
        }
      ],
      "tags": [
        "colloquial",
        "dated",
        "humorous"
      ]
    }
  ],
  "word": "knight of the green cloth"
}

{
  "etymology_text": "An allusion to the green cloth that covers a gaming table.",
  "forms": [
    {
      "form": "knights of the green cloth",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "knights of the green cloth"
      },
      "expansion": "knight of the green cloth (plural knights of the green cloth)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English colloquialisms",
        "English countable nouns",
        "English dated terms",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English humorous terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Gambling"
      ],
      "glosses": [
        "A gambler."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "gambler",
          "gambler"
        ]
      ],
      "raw_glosses": [
        "(dated, humorous, colloquial) A gambler."
      ],
      "synonyms": [
        {
          "word": "knight of the green baize"
        }
      ],
      "tags": [
        "colloquial",
        "dated",
        "humorous"
      ]
    }
  ],
  "word": "knight of the green cloth"
}