Spanky Wanky Share definition Flag When you ejaculate on your partners bum cheek and then slap it as hard as possible to watch it fly everywhere. Do you want to come upstairs for a Spanky Wanky. I hope it gets messy! Spanky Wanky by Davo375932 February 2, 2021 0 0 Get merch Get the Spanky Wanky mug. Buy Now — $32.95 See more merch