Gorilla in the washing machine. Share definition Flag cunnilingus: oral stimulation of the vulva or clitoris My favorite euphemism for cunnilingus is 'gorilla in the washing machine.' Gorilla in the washing machine. by chernobylspice December 11, 2003 0 0 Get merch Get the Gorilla in the washing machine. mug. Buy Now — $32.95 See more merch