Top definition
A name coined for the dinosaur that appears at the end of the stage 'Dino Dino Jungle' in Gamecube's "Mario Kart: Double Dash!" The Derpasaurus sticks his face across the bridge as you are karting across.
Player 1: "dude, the derpasaurus rex knocked me off of the bridge!!! "

Player 2: "figures broski, he's crosseyed"
by Broviet Russia April 26, 2011
Get the mug
Get a Derpasaurus Rex mug for your coworker Riley.