mum
Proposed by a contributor, not yet supported by evidence.
Meaning · English
To silence.
Register: slang
Examples
Well, Sal, you mum your dubber pretty generally, but when you do slacken your glib you may as well do it civilly.
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 “mum” mean?
To silence.
Is “mum” formal or informal?
mum is generally slang.