a-rex 

Slang for Anorexia Nervosia. Used mainly as an insult for friends who believe they are fat and opt to not buy/eat food.

"Thomas, what are you ordering?"
"Meh. I think I'll get a cruton"
"WTF mate? A cruton? what are you a fatass?"
"Don't call me fat!"
"You are fat you A-rex son of a biotch"

a-rex by David A. Sherman March 28, 2008

beerosaurus rex 

a big guy who looks completely ridiculous drunk

watch out for the beerosaurus rex over there. He might fall on you

beerosaurus rex by SuperExtremeX March 17, 2009

Minisaurus Rex 

The Arbitur in Halo Wars is a mini t-rex with a sideways mouth. Made by Zyloth II

omfg i just roflol'd someone with my minisaurus rex

Minisaurus Rex by Zyloth II June 10, 2009

Noobasaurus Rex 

The apitamy of noob. Someone who is a total noob and can't hide their maximun noobism.

Noob: Why do they call it Halo? Is it because that big ring thing in the sky?

Not Noob: You are such a Noobasaurus Rex.

Noobasaurus Rex by hiphopanonymous12 January 19, 2011

JesusSaurs-Rex 

Someone who is so fucking amazing they are considered part Jesus part T-Rex!

-Originated by Brendan

Chuck Norris is such a JesusSaurs-Rex

JesusSaurs-Rex by The_Real_JesusSaurs-Rex June 11, 2011

Bitchawhoreous Rex 

A Bitchawhoreous Rex is a girl who can't get over herself in any way. If she sees a girl texting her boyfriend, she will activate stealth mode, steal the number, and bitch the girl out. However, a Bitchawhoreous Rex doesn't have a wide vocabulary (or long arms) , so her attempts at hurting the other person's feelings generally fails miserably. It usually results in her crying to her boyfriend to stick up for her, to which the boyfriend replies by falcon punching her. See also: Stupid cunt bitch face scumbag Slut McMuffin

Bitchawhoreous Rex: Stop tlkin 2 mah bf biyotch
Girl with class and an education: I don't know you, nor do I care who you are. Just shut up. You're a whore. Go suck a bag of dicks. You know you want to.

2 minutes later....

Bitchawhoreous Rex: "boyfriend do something!!"
Boyfriend: FALCON PUUUUNCH!

Bitchawhoreous Rex by dajugganautbitch September 18, 2012

Rapeasaurus-Rex 

The act of unwanted sex by a Tyrannosaurus-Rex.

I was hurting bad the next day after I got Rapeasaurus-Rexed. HELP! RAPEASAURUS-REX!

Rapeasaurus-Rex by Dr.Ian October 10, 2012