Black as a ducks guts Share definition Flag Black as a ducks guts is a term used in australian slang to tell someone that the weather looks horrible "Mate look, its as black as a Ducks guts. We should hit the frog and toad Black as a ducks guts by Dunny licker May 8, 2023 0 0 Get merch Get the Black as a ducks guts mug. Buy Now — $32.95 See more merch