A pejorative term I developed in reference to some, heartless, destructive, and vindictive women. From "vagina", referring to the mammalian birth canal and "dinosauria" (coined by Dr. Richard Owen) meaning "fearfully great lizard." The term is meant to convey the epitome of "bitch" potential that some (emphasized) women display.
My friend's ex-girlfriend broke up with him the day after her car fell off the ramps and crushed his legs while he was changing the oil. Now she's dating his mom. What a Vaginasaurus Rex.
by doctorpinkfreud October 13, 2008
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(Re Jose Mourinho) There's no escaping the fact the man is a very good football manager. Equally, however, there's no escaping the fact he is one of the biggest cunts ever to walk the face of the earth, and I include the Vaginasaurus Rex in that.

Arseblog 25 August 2010
by Spacejunk56 August 25, 2010
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AVagina which is huge, has teeth and is a carnivore because it DEVOURS meat of all sorts.

Its diet of "meat" can cause bad breath if unclean
OH mate, look out for her, she gets around and i hear she has a vaginasaurus rex.
by kritter0027 March 22, 2011
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An ex-girlfriend or wife who didn't take your breaking up with her well. A scorn woman intent on revenge on the man who dumped her. Like Wayne's ex in Waynes World
I'm concerned that my friend will suffer an attach from his vaginasaurus ex.
by J Zee July 24, 2009
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1.When someone, male or female, is being an incredible whiny bitch and/or seems like they have so much sand in their vagina;real or presumed, that the Mojave Desert then seems like a sand box.

Their mating call is a sound that comes deep within your throat, is loud; above 80 decibels and you have to wag your tongue back and forth in your mouth to create said noise. Since their nature is to wade in their own self pity, instead of being turned on they reply with "What's wrong with you?" or "You're so fucking gay". And then walk away to go and touch his/herself.

Matt: "Oh whoa is me, my life sucks, I'm going to go and drink all day because no one likes me. I hate my job and I just want to kill myself."

Greg: "Dude, you're such a Vaginasaurus Rex"
by The Golden Child Is I September 6, 2008
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A vagina stretched out to a large extent, Usually that of a hookers.
by Revy200 July 31, 2011
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The name for your vagina after its been waxed....cuz its super sore:-P.. hehe get it? I think so.
by FloppyBolognias August 2, 2017
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