"done brown" meaning in English

{
  "etymology_text": "See do someone brown.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "done brown (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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"
        }
      ],
      "examples": [
        {
          "ref": "1840, John William Carleton, The Sporting Review, page 286:",
          "text": "At the mention of the increased amount of odds, the snob took the youngster aside, and said to him, \"Look now, by the book, we have the old man done brown; my horse is dead amiss, your cousin's horse you can beat easy, […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Thoroughly deceived, cheated, or fooled."
      ],
      "id": "en-done_brown-en-adj-lnERKVbC",
      "raw_glosses": [
        "(dated) Thoroughly deceived, cheated, or fooled."
      ],
      "tags": [
        "dated",
        "not-comparable"
      ]
    }
  ],
  "word": "done brown"
}

{
  "etymology_text": "See do someone brown.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "done brown (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1840, John William Carleton, The Sporting Review, page 286:",
          "text": "At the mention of the increased amount of odds, the snob took the youngster aside, and said to him, \"Look now, by the book, we have the old man done brown; my horse is dead amiss, your cousin's horse you can beat easy, […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Thoroughly deceived, cheated, or fooled."
      ],
      "raw_glosses": [
        "(dated) Thoroughly deceived, cheated, or fooled."
      ],
      "tags": [
        "dated",
        "not-comparable"
      ]
    }
  ],
  "word": "done brown"
}