P.M.H.P.
P. M. H. P. is when you’re too busy having fun to remember you’re supposed to be faithful. It’s like a cheat but with more giggles and less guilt.
My cousin got called P. M. H. P. because she was with her boyfriend’s friend at the concert.
My neighbor’s husband was P. M. H. P. because he was with his coworker at the office party.
My friend’s dad got called P. M. H. P. because he was with his ex at the grocery store.