"a tragos" meaning in Spanish

{
  "head_templates": [
    {
      "args": {},
      "expansion": "a tragos",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "to learn bit by bit",
          "text": "aprender a tragos",
          "type": "example"
        },
        {
          "ref": "17th century, Francisco Antonio de Fuentes y Guzmán, Recordación Florida, Adiciones y Aclaraciones III:",
          "text": "Hace á tragos su papel",
          "type": "quote"
        }
      ],
      "glosses": [
        "bit by bit; gradually"
      ],
      "id": "en-a_tragos-es-adv-CW5cO2Yw",
      "links": [
        [
          "bit by bit",
          "bit by bit"
        ],
        [
          "gradually",
          "gradually"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) bit by bit; gradually"
      ],
      "synonyms": [
        {
          "word": "por partes"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a tragos"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "a tragos",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Requests for translations of Spanish quotations",
        "Spanish adverbs",
        "Spanish entries with incorrect language header",
        "Spanish idioms",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish terms with quotations",
        "Spanish terms with usage examples"
      ],
      "examples": [
        {
          "english": "to learn bit by bit",
          "text": "aprender a tragos",
          "type": "example"
        },
        {
          "ref": "17th century, Francisco Antonio de Fuentes y Guzmán, Recordación Florida, Adiciones y Aclaraciones III:",
          "text": "Hace á tragos su papel",
          "type": "quote"
        }
      ],
      "glosses": [
        "bit by bit; gradually"
      ],
      "links": [
        [
          "bit by bit",
          "bit by bit"
        ],
        [
          "gradually",
          "gradually"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) bit by bit; gradually"
      ],
      "synonyms": [
        {
          "word": "por partes"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "a tragos"
}