"alla spina" meaning in Italian

{
  "head_templates": [
    {
      "args": {
        "inv": "1"
      },
      "expansion": "alla spina (invariable)",
      "name": "it-adj"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "draft (referring to drinks on tap)"
      ],
      "id": "en-alla_spina-it-adj-jDpK7FTW",
      "links": [
        [
          "draft",
          "draft"
        ]
      ],
      "tags": [
        "invariable"
      ]
    }
  ],
  "word": "alla spina"
}

{
  "head_templates": [
    {
      "args": {
        "inv": "1"
      },
      "expansion": "alla spina (invariable)",
      "name": "it-adj"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Italian adjectives",
        "Italian entries with incorrect language header",
        "Italian indeclinable adjectives",
        "Italian lemmas",
        "Italian multiword terms"
      ],
      "glosses": [
        "draft (referring to drinks on tap)"
      ],
      "links": [
        [
          "draft",
          "draft"
        ]
      ],
      "tags": [
        "invariable"
      ]
    }
  ],
  "word": "alla spina"
}