What Does ‘Cap’ Mean?
Cap means a lie or an exaggeration, so "that is cap" or "you are capping" means "I do not believe you".
Internet & memes noun / verb
Examples of ‘Cap’ in a sentence
- “He said he ran a mile in four minutes. That is cap.”
- “Stop capping, you never saw that.”
Where does ‘Cap’ come from?
It comes from older slang where "capping" meant boasting or lying, and spread through hip-hop and social media. We do not claim an earlier exact origin.
How to use it, and when not to
Use it to doubt a claim lightly. Avoid it if the person is telling you something serious.
For parents and teachers
Fine around parents and teachers. Safe. Not rude on its own, though calling someone a liar can feel blunt.
Related slang
Frequently asked questions
What does Cap mean?
Cap means a lie or an exaggeration, so "that is cap" or "you are capping" means "I do not believe you".
Where does Cap come from?
It comes from older slang where "capping" meant boasting or lying, and spread through hip-hop and social media. We do not claim an earlier exact origin.
Is Cap OK to say around parents or teachers?
Fine around parents and teachers. Safe. Not rude on its own, though calling someone a liar can feel blunt.
How do you use Cap in a sentence?
He said he ran a mile in four minutes. That is cap. Stop capping, you never saw that.
More internet & memes slang
67, Aura farming, Bet, Brainrot, Chronically online, Clock it. Or browse the full A–Z / try the Slang Translator.
Sources
Definition written by VibeDex. Slang changes quickly, so this is a snapshot. Last reviewed 2026-10-23.