"gimme hat" meaning in English

{
  "etymology_text": "So called because sometimes given away as freebies.",
  "forms": [
    {
      "form": "gimme hats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gimme hat (plural gimme hats)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999, William Gibson, All Tomorrow's Parties (Bridge trilogy; book 3), New York, N.Y.: Viking Press, →ISBN, page 139:",
          "text": "“It's from those nylon baseball caps they used to wear, got black nylon mesh on the back, for ventilation? My mother used to call those ‘gimme’ hats . . .”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of trucker hat"
      ],
      "id": "en-gimme_hat-en-noun-OQtrGHxd",
      "links": [
        [
          "trucker hat",
          "trucker hat#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "trucker hat"
        }
      ]
    }
  ],
  "word": "gimme hat"
}

{
  "etymology_text": "So called because sometimes given away as freebies.",
  "forms": [
    {
      "form": "gimme hats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "gimme hat (plural gimme hats)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "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": "1999, William Gibson, All Tomorrow's Parties (Bridge trilogy; book 3), New York, N.Y.: Viking Press, →ISBN, page 139:",
          "text": "“It's from those nylon baseball caps they used to wear, got black nylon mesh on the back, for ventilation? My mother used to call those ‘gimme’ hats . . .”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of trucker hat"
      ],
      "links": [
        [
          "trucker hat",
          "trucker hat#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "trucker hat"
        }
      ]
    }
  ],
  "word": "gimme hat"
}