A female of small build, like a bird, but large belly due to infiltration of male seed. Often walks with a waddle late in her term. Easily agitated with the ability to acquire a wide spectrum of moods in a short period of time.
The only creature more dangerous than the T-REX was the pregosaurus.
by okcmatt March 30, 2011
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A pregnant woman who acts as if she is the first person to ever be pregnant. Quick to anger and quick to tears.
I'm going to work late rather than go home and face the wrath of Pregosaurus Rex.
by Coward in the corner August 8, 2010
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I saw this monsterlike creature roaming the plains at a buffet and it made me go blind. I think it was a pregosaurus rex.
by breakudown1011 July 11, 2008
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