nonsensei Share definition Flag A classic PC gamer and emul8'r that gets everything online. And a sensei full o' nonsense. Silent_Grudge: GEN., you're fucking nonsensei.t0tally nonsensei by GEN.N0NSENSEI December 3, 2010 0 0 Get merch Get the nonsensei mug. Buy Now — $32.95 See more merch