slap a daddy Share definition Flag slap a daddy (v.) a girl so ugly you feel the only recourse is to slap the one responsible for her genetic makeup. That's an ugly bitch, i need to slap a daddy That girl is so ugly i need to slap a daddy slap a daddy by Scite Ipsos June 5, 2007 0 0 Get merch Get the slap a daddy mug. Buy Now — $32.95 See more merch