third base
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Touching another person’s genitals in a sexual manner; mutual masturbation.
Register: slang
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 “third base” mean?
Touching another person’s genitals in a sexual manner; mutual masturbation.
Is “third base” formal or informal?
third base is generally slang.