mummy's fist Share definition Flag To have ones large penis strapped or bandaged with a splint after suffering an injury of Bill Clinton proportions. "The operation went OK but afterwards it was like staring at a mummy's fist". mummy's fist by Giles Bradley April 24, 2005 0 0 Get merch Get the mummy's fist mug. Buy Now — $32.95 See more merch