One who is exhibiting cunt-like behaviors to an extreme degree, such as being an intolerable bitch and/or extraordinarily slutty. The invocation of such a word also likens the cunt to a humongous, slobber-slinging, flesh-eating dinosaur, which is, in fact what a cunt is.
Pimp, "Shut up, bitch! You be ackin' like a cuntosaurus."
Prostitute, "ROAR!"
by Ashley Hoffa September 9, 2007
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a female who is a bitch and cunt
Virginia sue is such a cuntosaurus for not wanting to pay child support
by custodiodadosaurus January 24, 2013
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A dinosaur with the face of a female cunt
The cuntosaurus was was wacking off with lotion but instead of wacking his lower area it was rapidly jerking its cunt face
by DJ Rectum December 24, 2016
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Nobody truly knows the exact origin of the Cuntosaurus as they disguise themselves as everyday objects, animals and even humans however never as themselves due to the general nature of this elusive pain in the arse beast.
What a Cuntosaurus Rex.

Your perhaps the cuntiest of all the Cuntosaurus Rex.
by Cuntosaurus Rex Hunter May 28, 2019
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Cranky, nasty tempered bitch, usually of advanced years.
Watch out for the HR rep, she's a real cuntosaurus Rex
by Dogg-kingg July 27, 2008
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