butt sex
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Anal sex.
Register: slang, vulgar
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “butt sex” mean?
Anal sex.
Is “butt sex” formal or informal?
butt sex is generally slang, vulgar.