Dafer dan Share definition Flag The act of grabbing your balls and rubbing your hand from the front of someone's forhead to the top of thier head. "I gave Kevin a Dafer dan yesterday during class, he was pissed!. Dafer dan by Jesseboyx January 29, 2009 0 0 Get merch Get the Dafer dan mug. Buy Now — $32.95 See more merch