scum slapped Share definition Flag to be struck across the face with the drool saturated hand of a baby, resulting in spastic wiping off of the face. "that baby may look cute but if ya get to close your gonna get scum slapped." scum slapped by th hit man February 1, 2008 0 0 Get merch Get the scum slapped mug. Buy Now — $32.95 See more merch