Someone who has been historically and classically a cunt (C U Next Tuesday). The amount of bitchedgry that comes out of this person is comparable to the size of the tyrannosaurus rex. And thier attitude needs to be extinct like a T=rex as well.

Can also refer to a BDB (big dumb bitch) with thunder thighs.

Summary: A large cunt
Stop being a cuntisaurus rex and get the fuck out.
by duetobe February 04, 2010

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