by the Roflsaur October 13, 2005
The dinosaur that runs around and makes a ROFL noise when it runs jumps and eats usually stated after a funny joke.
I herd this joke from jack and i couldnt stop laughing its like the Roflsaurusrex was in the room XD
by Rofl at you mother March 14, 2009
Pronounced rah-full-sore-us rex; Someone acting like an idiot or someone being incredibly stupid... so stupid that it's funny.
by Dyelineye Carlineye September 18, 2008