Green’s Dictionary of Slang

L.O.P. adj.

[pussy n. (2)]

(US black) Lack Of Pussy; sexual frustration.

[US]G. Tate ‘Public Enemy’ in Flyboy in the Buttermilk (1992) 128: By my homegirl’s reckoning all the misogyny is the result of PE suffering from LOP: lack of pussy. She might have a point.