A man who is often classed as stocky, thick body big arms and legs and a large arse. Rugby player build, can also refer to the girth of the penis
Certainly not something thin, or lacking in thickness whatsoever. Comparative to the physical solidness of a black woman.
Yo, tonight was a slow night at work, the type that makes me crave a THICK joint. No not some average thick, I’m talkin black girl thick homie. Smoke up somethin righteous and smooth at the same time.
A big penis.
Man: Honey, I have a thick stick.
Woman: No you don't.
Man: ...No I don't.
Originated in California, "what's thick?" is basically another term for a "booty call". Asking what's thick? To a person that isn't really "thick" is basically an offense.
Hey Jasmine, damn you look fine. So what's thick?
A girl who’s has a lot of meat on her body but isn’t too fat!