sly butcher Share definition Flag A homosexual man who engages in anal sex (i.e. he takes meat in through the back door), also implying that he does so secretly. I always did think that Prime Minister a bit of a sly butcher. sly butcher by Gruntyface July 14, 2010 0 0 Get merch Get the sly butcher mug. Buy Now — $32.95 See more merch