bum cheeks
Bum cheeks is the very British, and fairly plain-spoken, way to refer to the buttocks — specifically the two rounded halves of them.
Definitions
Bum cheeks is the very British, and fairly plain-spoken, way to refer to the buttocks — specifically the two rounded halves of them. It's informal without being particularly rude, the kind of phrase a British parent might use with a toddler or that turns up in light comedy sketches. Less crude than some alternatives, more direct than 'posterior' — bum cheeks sits comfortably in everyday casual British English as an anatomically accurate but not overly clinical description.
He forgot to check the back of his jeans before leaving the house — there was a hole right across both bum cheeks.
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(UK, informal) Buttocks.
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🇬🇧About British & Irish slang slang
UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.
See all British & Irish slang slang on Slangora.
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Semantically related
- arse cheeks83%
British and Australian vulgar slang for the two rounded masses of flesh that make up the buttocks. The term is anatomically direct and carries a register somewhere between crude and clinical — less aggressive than some alternatives, but firmly informal. Used both literally in body-related contexts and figuratively in expressions of disbelief or exasperation. Also appears in comedy contexts where the exaggerated formality of 'cheeks' against the bluntness of 'arse' is part of the joke.
- arse cheeks82%
British and Commonwealth vulgar slang for the buttocks, specifically both halves of the rear end. Functionally equivalent to the North American ass cheeks. Used in both literal contexts and as a mildly vulgar intensifier. Common and unremarkable in casual British speech; the vulgarity registers as mild by British standards and causes little offense in informal settings. The compound is perfectly transparent in meaning and causes no ambiguity; its mildly vulgar character is simply part of the natural range of British casual speech.
- butt cheek80%
A butt cheek is one of the two rounded halves of the buttocks — the fleshy, cushioned parts of the behind that make sitting comfortable and walking possible. The term is casual North American slang that sits somewhere between clinical and crude, accessible enough for everyday conversation without crossing into serious vulgarity. It appears everywhere from children's bathroom humor to adult comedy, medical contexts, and fashion discussions about fit. Two butt cheeks make a butt — math you don't need a degree for.
- butt cheek74%
(North America, slang) A buttock.