Root tap Share definition Flag A flick, thump, or quick strike to the genitals of a relaxed, distracted, or otherwise inattentive male companion. "Hey, Jake?" "Yeah?" "ROOT TAP!" "AUGH You Fucker!" Root tap by Wacky Joker November 4, 2012 0 0 Get merch Get the Root tap mug. Buy Now — $32.95 See more merch