1 definition by Bermuda Ben

The anatomy of an ancient and should be extinct reptilic woman of the Mesozic dating era. Usually carnivorous and often of enormous size.

Term can also be used in reference to the female attached to the anatomy
He became a gay vegetarian after he was mauled by the Vaginasaurus.

The vaginasaurus gave a deep throated growl and the stench of fleshy decay filled the bedroom.

by Bermuda Ben May 12, 2008
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