1. A tall, terrifying species of dinosaur that will one day rule the world.

2. A verb that elucidates a large action.
1. In 4146 AD, Olegasaurus Rex will rule the world!

2. Man: Dude I just Olegasaurus'd up!
Other man: DUDE!!!
by darkolove January 15, 2013
Get the Olegasaurus mug.