O.P.P

"Other people's pussy" As in the pussy of others, belonging permanently or temporarily.

Permanently: the female's
Temporarily: The male's; as in the male's girlfriend

Jim: Imma score me some OPP tonite.
Jerry: Aw fr?
Jim: Yep--Mmmm I love me that OPP, yo!
Jerry: Aw fr?
Jim: I think I'll go after James'! That silly has a fine ass! Damn I love OPP!
Jerry: Aw fr?