Bonanard Share definition Flag A bonanard is when you have a erection so curved that people mistake it as banana. Example: Dude why is Greg walking around with a banana in his pants? That's no banana Greg has a bonanard. Bonanard by Therealdeal1234 January 22, 2014 0 0 Get merch Get the Bonanard mug. Buy Now — $32.95 See more merch