Is it a swear word?
Yes — Ass is considered a swear word, though its severity varies by context and region.
What does it mean?
Refers to the buttocks, or is used as a general insult meaning a stupid or foolish person. Also appears in many compound expressions: "badass" (cool/tough), "dumbass" (idiot), "kiss-ass" (sycophant). Originally just meant a donkey — the vulgar meaning developed over centuries.
Is it offensive?
Moderately crude. "Don't be an ass" is fairly mild. "Move your ass" is rougher. The compounds vary — "badass" is often positive, while "asshole" is a separate, stronger word.
Can you say it at work?
"Badass" is increasingly acceptable in casual workplaces ("that's a badass feature"). Using "ass" alone is unprofessional. Never in written communication.
Regional differences
Very common. Americans use "ass" where Brits would say "arse." "Badass" is mainstream slang.
Less common — Brits prefer "arse" for the body part. "Ass" sounds American. Using it might seem like you're imitating American speech.
Both "ass" and "arse" are used. Australian English borrows from both American and British usage.
Safer alternatives
Examples
- “Don't be such an ass.”
- “Get your ass in gear — we're late.”
- “That was a badass presentation.”