nen u Share definition Flag "Nen u" is the german knock off of "no u". German for "No you" is "Nein Du" if, translated from english. there for a simple, "Leet" style for german users. Guy1: Call her fat Guy2: nen u Guy1: Wut? nen u by Haasilton August 25, 2009 0 0 Get merch Get the nen u mug. Buy Now — $32.95 See more merch