Snap your back like a KitKat Share definition Flag Literally just the act of snapping someone's back like a KitKat. A good threat to use against assholes. Harry: Bitch if you don't shut up I'll snap your back like a KitKat. Snap your back like a KitKat by Rapidash192 October 20, 2020 Get the Snap your back like a KitKat mug.