cap on
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To spread caps (lies) or false rumors (about someone); to slander (someone); to insult (someone's) family.
Register: slang
Where it’s used:
Used
American English
Examples
That guy is always capping on me—don't believe a word he says.
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 “cap on” mean?
To spread caps (lies) or false rumors (about someone); to slander (someone); to insult (someone's) family.
Is “cap on” formal or informal?
cap on is generally slang.