Belboon Share definition Flag A cross between a bell-end and a buffoon. But worse than either one of them because a bell-end is a dick and a buffoon is an idiot. So being both a dick and an idiot is pretty tragic. Fucking hell, Will. You’re such a belboon. Belboon by Garibo November 28, 2019 0 0 Get merch Get the Belboon mug. Buy Now — $32.95 See more merch