Dumb Dingus Share definition Flag When you want to say that someone is dumb You dumb dingus! You crashed my car! How did you get an F you dumb dingus! Dumb Dingus by SmolMiataYT September 20, 2023 0 0 Get merch Get the Dumb Dingus mug. Buy Now — $32.95 See more merch