fodslap Share definition Flag derogatory term used to inform someone you believe they have a large forhead Oi Fodslap, you've got a big fod That fodslaps fod is as big as the champs d'elysee fodslap by Hindsightman February 10, 2006 0 0 Get merch Get the fodslap mug. Buy Now — $32.95 See more merch