A woman who is so evil that if she existed during the time of the dinosaur, she would have survived extinction through sheer hatred for anything that might live.
My boss is an evil souless cuntasaurus rex
Bitch from hell. Relentless shrew.
"We could be happy if your mother wasn't such a cuntasaurus rex!"
A large and or scary looking woman who is rude, or "cunt-like" in nature
Yeah, she is pretty much a cuntasaurus rex for saying that to him.
That girl mean! Like a cuntasaurus rex
Dayum! That boy loves his pussy! Right cuntasaurus rex he is...
(Derogatory) When someone is being such a a huge fucking cunt that it is comparable to the size of a tyrannosaurus rex.
Keysha needs to stop being a cuntasaurus rex.