"brown pound" meaning in English

{
  "head_templates": [
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      "args": {
        "1": "en",
        "2": "noun"
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      "expansion": "brown pound",
      "name": "head"
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  ],
  "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": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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        {
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          "parents": [],
          "source": "w"
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      ],
      "examples": [
        {
          "ref": "27 September 2004, Sunday Times",
          "text": "MUCH has been said about the value of the pink pound, the grey pound and the brown pound'."
        },
        {
          "bold_text_offsets": [
            [
              86,
              97
            ]
          ],
          "ref": "2004, Sunday Times:",
          "text": "It's only a matter of time before marketers collide in the scrabble for the pink grey brown pound.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "the perceived purchasing power of Britain’s Black and Asian minorities as a group"
      ],
      "id": "en-brown_pound-en-noun-hGmcybwC",
      "raw_glosses": [
        "(UK) the perceived purchasing power of Britain’s Black and Asian minorities as a group"
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "brown pound"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun"
      },
      "expansion": "brown pound",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "27 September 2004, Sunday Times",
          "text": "MUCH has been said about the value of the pink pound, the grey pound and the brown pound'."
        },
        {
          "bold_text_offsets": [
            [
              86,
              97
            ]
          ],
          "ref": "2004, Sunday Times:",
          "text": "It's only a matter of time before marketers collide in the scrabble for the pink grey brown pound.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "the perceived purchasing power of Britain’s Black and Asian minorities as a group"
      ],
      "raw_glosses": [
        "(UK) the perceived purchasing power of Britain’s Black and Asian minorities as a group"
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "brown pound"
}