"brown shoe" meaning in English

{
  "forms": [
    {
      "form": "brown shoes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "brown shoe (plural brown shoes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: black shoe"
        },
        {
          "ref": "2004, W. Brad Johnson, Gregory P. Harper, Becoming a Leader the Annapolis Way, page 21",
          "text": "Halsey was also a “brown shoe,” a naval aviator, who was outgoing, bold, and sometimes maybe even a little too daring.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A naval aviator."
      ],
      "id": "en-brown_shoe-en-noun-hmNoYTh4",
      "links": [
        [
          "naval",
          "naval"
        ],
        [
          "aviator",
          "aviator"
        ]
      ],
      "raw_glosses": [
        "(US, naval) A naval aviator."
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "government",
        "military",
        "naval",
        "navy",
        "politics",
        "war"
      ]
    }
  ],
  "word": "brown shoe"
}

{
  "forms": [
    {
      "form": "brown shoes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "brown shoe (plural brown shoes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "text": "Coordinate term: black shoe"
        },
        {
          "ref": "2004, W. Brad Johnson, Gregory P. Harper, Becoming a Leader the Annapolis Way, page 21",
          "text": "Halsey was also a “brown shoe,” a naval aviator, who was outgoing, bold, and sometimes maybe even a little too daring.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A naval aviator."
      ],
      "links": [
        [
          "naval",
          "naval"
        ],
        [
          "aviator",
          "aviator"
        ]
      ],
      "raw_glosses": [
        "(US, naval) A naval aviator."
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "government",
        "military",
        "naval",
        "navy",
        "politics",
        "war"
      ]
    }
  ],
  "word": "brown shoe"
}