mob up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To form a mob (i.e. a large group).
Register: informal
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).
Sense 2
Meaning · English
To join, ally with or be beholden to the Mafia.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To gang up on.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “mob up” mean?
To form a mob (i.e. a large group).
Is “mob up” formal or informal?
mob up is generally informal.