Top definition
1.Only the coolest, most bad-ass dinosaur in the entire fucking universe.
It has chainsaw arms and laser-beam eyes, with robotic riders that carry big-ass guns and chew bubble gum. Only weakness is Chuck Norris

2. Another way of saying someone is amazing.
'OH MY GOD OH MY GOD LOOK AT THIS ONE IT'S LIKE AWESOME-O-SAURUS'
by Phazez0rz November 13, 2010
Get the mug
Get a Awesome-O-Saurus mug for your mama Beatrix.