Treacle slit Share definition Flag Terminology used in chris Morris' Nathan Barley s1e2. used in place of babe, darling, hun, sweetheart and doll snatch and so on. Alwight Treacle slit Treacle slit by Swede O' Nim April 19, 2009 0 0 Get merch Get the Treacle slit mug. Buy Now — $32.95 See more merch