Otto von Bismarck Share definition Flag When you authoritatively slap someone in the face with your penis, a.k.a., a "bismarck" with authority. Shutup bitch or i will Otto von Bismarck you! Otto von Bismarck by Aaron Skydiving March 17, 2005 0 0 Get merch Get the Otto von Bismarck mug. Buy Now — $32.95 See more merch