MAD PEEN Share definition Flag Used to describe activities that sluts partake in Guy 1: You hear about tracy Guy 2: Nah fam, what about her? Guy 1: I heard she started sucking MAD PEEN MAD PEEN by DommnSub January 8, 2018 0 0 Get merch Get the MAD PEEN mug. Buy Now — $32.95 See more merch