porcelain bus
English
Etymology
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).
Noun
porcelain bus (plural porcelain buses)
- (slang) A toilet bowl.
- 2005: DON'T trade the tour bus for the porcelain bus. You can eat, drink and be merry – not sorry – when overseas. — Escape Magazine travel advice