Discover what CAP and NO CAP mean in Gen Z slang: their definitions, origins, and how to use them naturally in texts, and conversations. Learn about the origins of the slang terms " cap " and " no cap " and how you'll see them used on social media in Later's social media glossary. NO CAP definition : 1. used for emphasizing that what you are saying is true: 2. used for emphasizing that what you…. Learn more. No cap means "for real, seriously" and is used to emphasize the truthfulness of a statement. It comes from African American English slang and is based on the wordplay of capping, which means "to boast; exaggerate; lie; insult".
