"porcelain bus" meaning in English

{
  "etymology_text": "From it being imagined that when gripping the sides of the bowl while vomiting into it that it's like a bus driver gripping the steering wheel of a bus (a bus steering wheel being roughly horizontal, as opposed to a car which has it up at an angle).",
  "forms": [
    {
      "form": "porcelain buses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "porcelain bus (plural porcelain buses)",
      "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": "2011, Fred Itfru, The Beer and I, page 10:",
          "text": "With a gut-wrenching heave, I grasped the steering wheel of the porcelain bus and shouted at the top of my voice for 'Hughie' to come and sort me out.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A toilet bowl."
      ],
      "id": "en-porcelain_bus-en-noun-8eWhB7Sb",
      "links": [
        [
          "toilet bowl",
          "toilet bowl"
        ]
      ],
      "raw_glosses": [
        "(slang) A toilet bowl."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-porcelain bus.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/f2/En-au-porcelain_bus.ogg/En-au-porcelain_bus.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/f2/En-au-porcelain_bus.ogg"
    }
  ],
  "word": "porcelain bus"
}

{
  "etymology_text": "From it being imagined that when gripping the sides of the bowl while vomiting into it that it's like a bus driver gripping the steering wheel of a bus (a bus steering wheel being roughly horizontal, as opposed to a car which has it up at an angle).",
  "forms": [
    {
      "form": "porcelain buses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "porcelain bus (plural porcelain buses)",
      "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 slang",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2011, Fred Itfru, The Beer and I, page 10:",
          "text": "With a gut-wrenching heave, I grasped the steering wheel of the porcelain bus and shouted at the top of my voice for 'Hughie' to come and sort me out.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A toilet bowl."
      ],
      "links": [
        [
          "toilet bowl",
          "toilet bowl"
        ]
      ],
      "raw_glosses": [
        "(slang) A toilet bowl."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-porcelain bus.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/f2/En-au-porcelain_bus.ogg/En-au-porcelain_bus.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/f2/En-au-porcelain_bus.ogg"
    }
  ],
  "word": "porcelain bus"
}