Emescendunce Share definition Flag MSN Dunce. One who regularly sends messages to unintended recipients. ''I think I just pooed whole vimto bon bons''''that SO wasn't for you''''I'm such an emescendunce'' Emescendunce by Ting Ting Panda King November 5, 2009 0 0 Get merch Get the Emescendunce mug. Buy Now — $32.95 See more merch