Songs About People by BruceM

Question 5

"Goddamn I'm glad y'all set it off
Used to be hard now you're just wet and soft"

What 1991 diss track begins with that couplet and savages Ice Cube's former N.W.A. bandmates? (The title lyric is an especially painful aspect of "bend[ing] over for the goddamn cracker")

No Vaseline