Mafacklecack Share definition Flag (Muh-fack-ull-cack) (V) to punch someone in the face. Mafacklecacker: (N) one who mafacklecacks. "I just mafacklecacked him in the face real good!" "You mafacklecacker!" (can be used as insult) Mafacklecack by barad April 29, 2009 0 0 Get merch Get the Mafacklecack mug. Buy Now — $32.95 See more merch