dingus Share definition Flag A person who does stupid things for laughs, not necessarily a stupid person.See Also: Class Clown Yo bro that dude is such a dingus! I can't believe he recited Baby by Justin Bieber completely by memory in front of the class! dingus by nogbog the dingus September 30, 2014 0 0 Get merch Get the dingus mug. Buy Now — $32.95 See more merch