Acronym for pimp chimp.
Going absolutely apeshit, just fucking going for it on everything in your vicinity.
"Yo that dude is PCin' (Pimp chimpin') everywhere."
"He's just monkeying around bro, chill."
when you shit, sneeze, fart and cum at the same time
"Dude I totally just shnfarumed all over your girlfriend!"
"Bro! Up top!"