"shoe money" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "shoe money (uncountable)",
      "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"
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          "source": "w"
        }
      ],
      "glosses": [
        "Money in the form of shoes (ingots of gold or silver formerly used in trade in the Far East)."
      ],
      "id": "en-shoe_money-en-noun-EjqOBumX",
      "links": [
        [
          "Money",
          "money"
        ],
        [
          "shoe",
          "shoe"
        ]
      ],
      "raw_glosses": [
        "(historical) Money in the form of shoes (ingots of gold or silver formerly used in trade in the Far East)."
      ],
      "synonyms": [
        {
          "word": "boat money"
        }
      ],
      "tags": [
        "historical",
        "uncountable"
      ]
    }
  ],
  "word": "shoe money"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "shoe money (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "English uncountable nouns"
      ],
      "glosses": [
        "Money in the form of shoes (ingots of gold or silver formerly used in trade in the Far East)."
      ],
      "links": [
        [
          "Money",
          "money"
        ],
        [
          "shoe",
          "shoe"
        ]
      ],
      "raw_glosses": [
        "(historical) Money in the form of shoes (ingots of gold or silver formerly used in trade in the Far East)."
      ],
      "synonyms": [
        {
          "word": "boat money"
        }
      ],
      "tags": [
        "historical",
        "uncountable"
      ]
    }
  ],
  "word": "shoe money"
}