cap on

verb

To 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.”

Meanings

verbcap on (third-person singular simple present caps on, present participle capping on, simple past and past participle capped on)

present singular third person caps on · participle present capping on · participle past capped on · past capped on

  1. 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 48

    And 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 163

    Dad 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
APA

cap on. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cap%20on

MLA

“cap on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cap%20on. Accessed November 4, 2026.

Chicago

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.