bonch
Informal slang for the perineum — the area of skin between the genitals and the anus.
Etymology timeline
Born ~2010 · no dated citations yetSeen in the wild
Bonch-Bruyevich sailed with the Doukhobors, and spent a year with them in Canada.
Bonch-Bruevich was born in [Oryol](https://en.wikipedia.org/wiki/Oryol "Oryol"), a town in [Oryol Oblast](https://en.wikipedia.org/wiki/Oryol_Oblast "Oryol Oblast") in [Central Russia](https://en.wikipedia.org/wiki/Eu…
Definitions
Informal slang for the perineum — the area of skin between the genitals and the anus. Bonch joins a large family of casual, slightly comic alternatives to clinical anatomical language, including taint, gooch, and grundle. It's used matter-of-factly in casual conversation, comedy, and sports contexts where that region of the body is relevant, often with a tone of amusement rather than vulgarity.
He came off the saddle too hard and announced to everyone that his bonch had taken the full impact.
Comments
(slang) The perineum.
Bonch is regional slang with variable meaning; in some contexts it refers to a person's backside or to a state of being. Best to check local context. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.
Bonch is uncommon regional slang with variable meaning. Use only when context makes the meaning clear. Formal equivalent: depends on intended sense. Common non-native mistake: assuming a universal meaning. The word is uncommon and context-dependent. Read or listen to the word in context several times before trying it yourself; the right register is harder to learn than the dictionary meaning. Native speakers will accept the word in writing only if they are using the same casual register; in business writing it sounds out of place.
“Bonch-Bruyevich sailed with the Doukhobors, and spent a year with them in Canada.”
“Bonch-Bruevich was born in [Oryol](https://en.wikipedia.org/wiki/Oryol "Oryol"), a town in [Oryol Oblast](https://en.wikipedia.org/wiki/Oryol_Oblast "Oryol Oblast") in [Central Russia](https://en.wikipedia.org/wiki/European_Russia "European Russia").”
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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Semantically related
- gooch74%
(slang) The perineum.
- aintcha72%
Slang term for the perineum — the area of the body between the genitals and the anus. Typically used in crude, humorous contexts. The word is almost always delivered as a punchline or setup for a joke rather than as a clinical descriptor. Primarily heard in informal, adult conversation in North American English. Considered vulgar and not appropriate for formal settings.
- aintcha70%
A crude slang term for the perineum, the area between the genitals and anus. The name rests on a vulgar pun embedded in its pronunciation — it is anatomically neither one region nor the other, hence the name. Encountered mostly in crude humor rather than clinical contexts. Not widely known outside certain regional or juvenile humor circles, but the wordplay makes it memorable.
- gonch67%
(Alberta, and, British Columbia, slang) Men's brief-style underwear.