Fishy Finger Share definition Flag When you poke someone in the vagina, and it smells really fishy. Ouch! My finger went up Ellie's fanny! *smells finger* Errgh that smells fishy! Err dude. Fishy finger! Fishy Finger by Mollie Bowes. December 4, 2010 0 0 Get merch Get the Fishy Finger mug. Buy Now — $32.95 See more merch