weg/wegging Share definition Flag Slang term for masterbation, developed by an Italian residing in Switzerland in 2002/2003. Steve..why are you taking so long in the bathroom....are you having a weg? What are you doing...wegging? weg/wegging by GangBanks March 29, 2004 0 0 Get merch Get the weg/wegging mug. Buy Now — $32.95 See more merch