A nickname for the biggest whore one knows. Just like Tyrannosaurus rex means "King of the terrible lizards", Skankasaurus rex means "Queen of the skanky-ass sluts".
Guy 1: Dude, I think I can get an easy fuck from Tanya at the party...
Guy 2: Man, for your own good, stay away from her infested ass! She's such a Skankasaurus rex!
A girl who is complete white trash. She is also unattractive, an attention whore, a slut, and any other combination of unbecoming qualities. Generally can be spotted in the local watering hole hitting on old skanky men in order to obtain free drinks.
The fat, ugly bitch that prevents you from spittin' game on her hot friend. Also known as a cock blocker, the enforcer, the ball wall, the side car, the game killer or the bouncer.
" Dude I had that girls' panties on fire.....that was until that Scankasaurus Rex showed up and fucked it all up!"