Finky Pinky Share definition Flag The pinky that your weird friend uses to shove up his rectum. "Austin was jerkin his gerkin, and he decided to get frisky so he shoved his finky pinky up his anus." Finky Pinky by quasdn June 16, 2016 0 0 Get merch Get the Finky Pinky mug. Buy Now — $32.95 See more merch