Lolsaurus Rex 

An ancient giant hilarity that still stalks the earth today.

Friend 1: I just got pelted in the face with a sandal.

Friend 2: hahahaha!!!! Lolsaurus Rex!

Lolsaurus Rex by smartboy369 May 4, 2007

Brohamulasaurus Rex

A nickname for a penis, ie: Clarks penis.

Brohamulasaurus Rex totally ravaged the town last night, destroyed the village and stole our women.

Brohamulasaurus Rex by Walt Diz April 5, 2008

T-Rex Syndrome 

The affliction suffered by someone who had an excessive workout the previous day, focusing on the arm muscles, and are now suffering extreme pains, leaving them to tuck in their arms all day to stay comfortable.

Too much gym yesterday left me with a major case of T-rex syndrome

T-Rex Syndrome by d00shbish January 16, 2010

Pwnasarus-Rex 

When a group or one person completely OWNZ u!!!

P_K just Pwnasarus-Rexed me!!

Pwnasarus-Rex by Greg March 2, 2005

fagisaurus-rex 

The king of the dinosaurs in the present day in the form of the biggest fag of all!

Look at that fagisaurus-rex, he treats his girlfriend like shit!

fagisaurus-rex by Otos November 13, 2009

Tyronosaurus Rex 

Big black dude. NFL lineman or truck driver sized. Sometimes works as bouncer a night clubs or as "event security". Generally presents a professional persona; but don't argue with him or injure his self esteem... all hell will break loose. (Show him some respect because he might be working his way through medical school or raising 6 younger siblings.)

Hey girls we will have to sneak in the back door. Tyronosaurus Rex said the cover charge is $10 tonight and I ain't payin for all five of you bitches to get in.

Tyronosaurus Rex by Jorge Trashe October 17, 2009

Yorkasaurus Rex

A specie that fails to capture any fish to sustain its needs with its short arms and therefore resorts to other tactics in an attempt to lure the fish into its trap with its bait.

That Yorkasaurus Rex may not have long arms but just look at his hotness!!

Yorkasaurus Rex by Yorkology. February 3, 2010