Vest Wanker Share definition Flag Guys wearing vests that expose man cleavage and/or side nipple! Did you see Brett with his man cleavage hanging out?Yeah that guy is such a vest wanker. Vest Wanker by Sazzlebazzle January 16, 2014 0 0 Get merch Get the Vest Wanker mug. Buy Now — $32.95 See more merch