Wemsy Share definition Flag A posh, minge hating, londoner who spends the majority of his or her time aggravating gingers. Usually of the birth name emma. Wemsy, stop verbally assaulting that ginger minge! Wemsy by sockdemon January 11, 2009 0 0 Get merch Get the Wemsy mug. Buy Now — $32.95 See more merch