for a man, it means "other ppl's pussy"
for a woman, it means "other ppl's penis"
*where a person can have a girlfriend/boyfriend while having someone else on the side without it being considered cheating on their lover.
of course in the songOPP by naughty by nature (but they had the clean version of other ppl's property)
"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?
Early 90's hip hop slang, popularized by Naught By Nature. In the song, O.P.P. stands for "other people's property" but colloquially it's known as "other people's pussy." This is inferred by the song lyrics and the general pondering of one being willing to cheat on their significant other.
Other People's Photography... To be down with O.P.P., one must be broke and lack ownership of a camera therefore relying on other people's photographs to upload current pictures on Myspace or Facebook...
"I'm waiting for you to email me the pictures from my birthday party, sheesh you know i'm down with O.P.P."