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?

O.P.P by September666 September 8, 2005

O.P.P 

Obedient Polite Person

Oh my god, that person is such an O.P.P!

O.P.P by womancrazy123 June 12, 2024

O.P.P.

Other Peoples Pussy

u down wit O.P.P. (yeah u know me!)

O.P.P. by Ricky Gainer April 25, 2004

O.P.P.

Ovine Progressive Pneumonia

Sheep 1: "You down with O.P.P.?"
Sheep 2: "Yes, I have Ovine Progressive Pnuemonia and it's gotten me down."

O.P.P. by Honey Badger 69 March 27, 2020

O.P.P.

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 song OPP by naughty by nature (but they had the clean version of other ppl's property)

O.P.P. by michele December 24, 2004

O.P.P.

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.

"You down with O.P.P.? Yeah you know me!"

O.P.P. by Nerd_Incognito September 23, 2020

O.p.p.

Other Peoples Property!
as the song goes...

Ya down wit OPP? Yeah you know me.

O.p.p. by Jesus August 11, 2004