Top definition
An overly large or muscular (or both) 'Gangster' or 'Thug'. Usually of African American descent.
"Dude, did you just see that huge black guy in there?!"

"Yeah, he's a straight up Thugosaurus rex!"
by Captain Testosterone April 22, 2010
Get the mug
Get a Thugosaurus rex mug for your cousin Rihanna.