NO CAP
No cap means: Keeping it real, not lying or exaggerating.
The term comes as a reference to having sex with no condom/cap living the experience 100% and not feeling like it wasn't the real thing.
Gurl: "shaquante do you really love me more that your 3 other babymommas"

Shaquante: "No cap, boo, No cap" <---(he lives by it)