"butter boat" meaning in English

{
  "forms": [
    {
      "form": "butter boats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butter boat (plural butter boats)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1828, JT Smith, Nollekens and His Times, Century Hutchinson, published 1986, page 238",
          "text": "‘You've seen me in my Pourpre du Pape, and do you know, that at our last Academy dinner, a stupid fool spilt the butter-boat upon it?’",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A shallow jug used for serving meted butter."
      ],
      "id": "en-butter_boat-en-noun-uO0chEGv",
      "links": [
        [
          "jug",
          "jug"
        ],
        [
          "butter",
          "butter"
        ]
      ]
    }
  ],
  "word": "butter boat"
}

{
  "forms": [
    {
      "form": "butter boats",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butter boat (plural butter boats)",
      "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"
      ],
      "examples": [
        {
          "ref": "1828, JT Smith, Nollekens and His Times, Century Hutchinson, published 1986, page 238",
          "text": "‘You've seen me in my Pourpre du Pape, and do you know, that at our last Academy dinner, a stupid fool spilt the butter-boat upon it?’",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A shallow jug used for serving meted butter."
      ],
      "links": [
        [
          "jug",
          "jug"
        ],
        [
          "butter",
          "butter"
        ]
      ]
    }
  ],
  "word": "butter boat"
}