"gold top" meaning in English

{
  "etymology_text": "From the gold-coloured aluminium top of the bottle in which this type of milk is sold.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "gold top (uncountable)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Milk",
          "orig": "en:Milk",
          "parents": [
            "Beverages",
            "Bodily fluids",
            "Dairy products",
            "Drinking",
            "Food and drink",
            "Liquids",
            "Body parts",
            "Human behaviour",
            "All topics",
            "Matter",
            "Body",
            "Anatomy",
            "Human",
            "Fundamental",
            "Chemistry",
            "Nature",
            "Biology",
            "Medicine",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Channel Island milk."
      ],
      "id": "en-gold_top-en-noun-F3JEz4i7",
      "links": [
        [
          "Channel Island milk",
          "Channel Island milk"
        ]
      ],
      "related": [
        {
          "word": "silver top"
        }
      ],
      "synonyms": [
        {
          "word": "gold-top milk"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "gold top"
}

{
  "etymology_text": "From the gold-coloured aluminium top of the bottle in which this type of milk is sold.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "gold top (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "silver top"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Milk"
      ],
      "glosses": [
        "Channel Island milk."
      ],
      "links": [
        [
          "Channel Island milk",
          "Channel Island milk"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "gold-top milk"
    }
  ],
  "word": "gold top"
}