"butt end" meaning in English

{
  "forms": [
    {
      "form": "butt ends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butt end (plural butt ends)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2006, “Rosetta Stoned”, performed by Tool:",
          "text": "Then the X-Files being\nLooking like some kind of blue-green Jackie Chan with Isabella Rossellini lips\nAnd breath that reeked of vanilla Chig Champa\nDid a slo-mo Matrix descent out of the butt-end of the banana vessel\nAnd hovered above my bug-eyes, my gaping jaw",
          "type": "quote"
        }
      ],
      "glosses": [
        "The thick end of something"
      ],
      "id": "en-butt_end-en-noun-P9qpqZSs",
      "links": [
        [
          "thick",
          "thick"
        ]
      ]
    }
  ],
  "word": "butt end"
}

{
  "forms": [
    {
      "form": "butt ends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butt end (plural butt ends)",
      "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",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2006, “Rosetta Stoned”, performed by Tool:",
          "text": "Then the X-Files being\nLooking like some kind of blue-green Jackie Chan with Isabella Rossellini lips\nAnd breath that reeked of vanilla Chig Champa\nDid a slo-mo Matrix descent out of the butt-end of the banana vessel\nAnd hovered above my bug-eyes, my gaping jaw",
          "type": "quote"
        }
      ],
      "glosses": [
        "The thick end of something"
      ],
      "links": [
        [
          "thick",
          "thick"
        ]
      ]
    }
  ],
  "word": "butt end"
}