dinky-do Share definition Flag When your belly button sticks out farther than your dicke does. Convo in Guys Locker Room: "Look how small that dudes dick is." "Damn I thought had a dick, but he got a dinky-do." dinky-do by mike licklandher December 8, 2003 0 0 Get merch Get the dinky-do mug. Buy Now — $32.95 See more merch