Smiffkins Bridge Share definition Flag The area between a mans' nut sack and his arse hole, aka the perineum. I sat on a drawing pin yesterday, got me right in the smiffkins bridge, hurt like a mutha fucka let me tell ya. Smiffkins Bridge by Bobanog June 19, 2008 0 0 Get merch Get the Smiffkins Bridge mug. Buy Now — $32.95 See more merch