Jackassasaur Share definition Flag A Jackass of epic proportions. Someone who does something above and beyond normal jackassness. Did he just cut over in front of us to turn into a parking lot? What a jackassasaur! Jackassasaur by Hushful May 8, 2010 0 0 Get merch Get the Jackassasaur mug. Buy Now — $32.95 See more merch