yickity splits Share definition Flag Simply put, lines/rails of cocaine. If you are down with the yak get those yickityspilts ready for snuffing! Custy: I am lookin for that white lady. Person: Well, shit, I got some yickity splits right here! yickity splits by Tank Tankerton December 19, 2008 0 0 Get merch Get the yickity splits mug. Buy Now — $32.95 See more merch