Quack orff Share definition Flag Euphemism for "fuck off" used by the legendary online spammer Ducky the Duckman, invariably followed by the word "missie". Quack orff missie. Quack orff by Kyaw Kyaw Win August 18, 2011 0 0 Get merch Get the Quack orff mug. Buy Now — $32.95 See more merch