cucking fat Share definition Flag Drunken rhyming slang for a cat that you really hate! (swop the first letter of each word for sober translation) Come home from the pub and trip over the cat, "I'm gonna kill that cucking fat!" cucking fat by Rusty Camaro August 31, 2003 0 0 Get merch Get the cucking fat mug. Buy Now — $32.95 See more merch