man boob
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
One of a pair of large or womanly breasts on a man caused by pectoral fat, or sometimes a hormonal condition such as gynecomastia.
Register: slang
Where it’s used:
Used
American English
Examples
The obese boy often wore a shirt while swimming at the pool in order to hide his man boobs.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “man boob” mean?
One of a pair of large or womanly breasts on a man caused by pectoral fat, or sometimes a hormonal condition such as gynecomastia.
Is “man boob” formal or informal?
man boob is generally slang.