complete jackass. whereas a wang is a guy who is moderately an asshole, a wanosaurus rex is a fucking idiot who is the very essense of being an asshole. yes, it is resonable to call the guy "the very essense of being an asshole" there is craft involved with opting instead to call him a wangosaurus rex.
"oh shit, that one dude who keeps wrecking open mic night by doing my chemical romance covers is here.... that dude is a total wang"
"shit, last week he tried to do a fall out boy cover..... on accoustic."
a rare species of dinosaur that magically warps forward in time when someone wins at life. this causes all believers of the magical powers of the winasaur to exclaim loudly WINASAURUS REX! followed by high fives and fist bumps galore.
<Jon gets the coin to go downthe girlscleavage, winasaurus rex appears> "WINASAURUS REX" <Jon high fives and fist bumps all surrounding people>