"jacket potato" meaning in English

{
  "etymology_text": "The \"jacket\" is the tough outer skin formed by baking.",
  "forms": [
    {
      "form": "jacket potatoes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es"
      },
      "expansion": "jacket potato (plural jacket potatoes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Foods",
          "orig": "en:Foods",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A baked potato."
      ],
      "id": "en-jacket_potato-en-noun-p3szeMCx",
      "links": [
        [
          "baked potato",
          "baked potato"
        ]
      ],
      "raw_glosses": [
        "(UK, Ireland) A baked potato."
      ],
      "tags": [
        "Ireland",
        "UK"
      ]
    }
  ],
  "word": "jacket potato"
}

{
  "etymology_text": "The \"jacket\" is the tough outer skin formed by baking.",
  "forms": [
    {
      "form": "jacket potatoes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es"
      },
      "expansion": "jacket potato (plural jacket potatoes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Irish English",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Foods"
      ],
      "glosses": [
        "A baked potato."
      ],
      "links": [
        [
          "baked potato",
          "baked potato"
        ]
      ],
      "raw_glosses": [
        "(UK, Ireland) A baked potato."
      ],
      "tags": [
        "Ireland",
        "UK"
      ]
    }
  ],
  "word": "jacket potato"
}