mug
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
The face.
Register: derogatory, slang
Where it’s used:
Used
American English
Examples
[…] 'let him go, I tell you, or I'll be after breaking your ugly mug,' and with that I gave him a dig that knocked him into smithereens.
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).
Sense 2
Meaning · English
The mouth.
Register: derogatory, slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
A gullible or easily cheated person.
Register: derogatory, slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “mug” mean?
The face.
Is “mug” formal or informal?
mug is generally derogatory, slang.