Naughty By Nature - O.p.p. (official Music Video) Site

Naughty by Nature's remains one of the most clever crossover hits in hip-hop history, masking provocative themes of infidelity with an infectious, piano-driven groove. Released in 1991, the track became a cultural phenomenon, peaking at #6 on the Billboard Hot 100 and popularising its eponymous acronym as a national catchphrase. The Acronym Mystery

While the group often used the "diplomatic" meaning of to avoid radio bans, the song’s lyrics and the artists themselves have clarified the more explicit intent: Naughty by Nature - O.P.P. (Official Music Video)