Wart Barrier Share definition Flag when there appears to be "warts" surrounding the nickel-sized part of the nipple. GUSCUBE!!! j00 gotz t3h WART BARRIER!!!!!! Wart Barrier by SKIDTARD June 24, 2004 0 0 Get merch Get the Wart Barrier mug. Buy Now — $32.95 See more merch