smack wylin Share definition Flag 1.To talk real crazy; not making any sense. 2.A false statement; something ludicrous. Girl 1: I know you gotta a weave! Girl 2: Girl you smack wylin I don't do weaves! smack wylin by jwupastries December 19, 2008 0 0 Get merch Get the smack wylin mug. Buy Now — $32.95 See more merch