Top Definition
When one is so totally wasted, that the brain has been shrunk to the size of a dinosaurs. Speech becomes a random annoying incoherent screech and mobility has been reduced to heavy random stomping.The belligasaur cannot comprehend normal everyday interactions with people and is only driven by the primal need for more alcohol.
Whenever I go out to drink with this girl, she always becomes a belligasaur.
by Jonathan Fang April 02, 2008
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