bonkonk Share definition Flag A bonkonk is someone who is a bitch or a meanie. Somone who is stupid and did somthing rele mean. An ass or buttpirate. My sister is going out with the guy I like....she's such a....a bonkonk. bonkonk by CraxyKen December 4, 2007 0 0 Get merch Get the bonkonk mug. Buy Now — $32.95 See more merch