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.
A woman who has an enlarged clit; This term could also describe a woman who thinks or acts like she has a dick.
"Brah, i was totally about to go down on this bitch last night right. I pulled her panties off and there was a clitosaurus rex staring me right in the face"