A polite way of sexual expression directed towards any female with a big ass that is typically mumbled to ones self or in the proximity of a fellow perv.
Craig: Damn. Look at her over there
J Love: Awwwrightttt!
Craig: She's keeping it THICK.
J Love: She's keeping it REAL.
Craig: She's keeping it REAL THICK!
J Love: Hell ya!
J Love: Cut me a piece.