Meanings
present singular third person caps on · participle present capping on · participle past capped on · past capped on
- slangtransitiveTo spread caps (lies) or false rumors (about someone); to slander (someone); to insult (someone's) family.
That guy is always capping on me—don't believe a word he says.
4 more examples
For the first few weeks I didn't say anything when the guys capped on me. My lack of response only encouraged them to bear down, and they capped on me mercilessly.
1990, Ben Carson, Gifted Hands: The Ben Carson Story, Zondervan, →ISBN, page 48And when somebody started calling us, when somebody started capping on you, talking about you, saying, well capping is a whole bunch of derogatory statements thrown at eachother^([sic])...
1994, Ramah Lillian Commanday, Survival Or Superiority, University of California Press, page 163Dad agreed with her, but then added, "Yeah, but I'll tell you one thing. You cap on me... you better not cap on me, 'cause I'll go upside your ass."
2009, Mishna Wolff, I'm Down: A Memoir, St. Martin's Press, →ISBN"Sounds like you got some bad intel," he told Carmen. "More like those chicks were capping on me about working at the pool."
2013, Matt de la Peña, The Living, Delacorte Press, →ISBN, page 83
Origin
From cap (“a lie or exaggeration”) + on.
Full word history & related roots →Cite this entry
cap on. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cap%20on
“cap on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cap%20on. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “cap on,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cap%20on.
Source: cap on on Wiktionary, CC BY-SA 4.0.