Someone who far too regularly tags photos on Facebook at every possible occasion. These photos are usually unwanted.
Izzie: Hey Phil and Dan, that girl Holly Rodrigues has tagged another Facebook photo of you.
Phil: For fucks sakeRodrigues...
Dan: That girl is such a fucking Tagasaurus Rex!
A pejorative term I developed in reference to some, heartless and destructive women. From "vagina" referring to the mamalian birth canal and "dinosauria" (conined 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.