Guineasaurus Rex

A guineasaurus rex is an off the boat italian american, or a guido. They usually have sex promiscuously with multiple partners in college. They enjoy saying things like "fucking skanks" and "Jaeger Bombs!" while pointing around the room.

Mike is a huge guineasaurus rex, no matter what you say.

Guineasaurus Rex by Cal Hacker March 3, 2009

Aztec Rex 

A sexual move so 'shocking' it moves mountains and moves people to new heights. If you give aztec rex to someone they wont forget it. Said to cause the recipient to make a dinosaur like roar and wake up on top of you.

it was rumoured to be the cause of the aztecs dying out!

Also see shocker

Dave "How was last night"
Eric "Aztec Rex made an appearance and i woke up with her straddling me, so id say pretty good"

Aztec Rex by pegleg123 May 14, 2009

Thesaurus Rex 

A person who uses a word program or internet thesaurus in order to make their papers or written works appear smarter by replacing common words with larger or uncommon words.

The phrontistery is a Thesaurus Rex's wet dream.

"Since when does Bismark use the word jackanapes?"
"Since he became a Thesaurus Rex."

Thesaurus Rex by Chromium April 3, 2006

Swaggasaurus rex 

1) A god of swag.

2) Someone with enough swag to match the great strength of the tyrannosaurus rex.

Guy 1: Dude, I think we're the most swaggalicious ones here!

Guy 2: We would be, if it wasn't for that swaggasaurus rex over there.

Swaggasaurus rex by $wagg 88 November 23, 2011

Rashasaurus Rex 

Someone that has a knarly rash, lurking on the sides of their face.

WOWA Kelly is a major Rashasaurus Rex.

Rashasaurus Rex by Shanahan February 24, 2007

Failsaurus Rex

The act of epic failing so tremendously it can only be compared to one of the most ridiculously proportioned dinosaurs that ever existed.

Guy 1: I just lost in COD to an 11 year old, 30 to 4.

Guy 2: Failsaurus Rex dude...

___

Guy 1: A customer just asked me why they needed a power adapter for their laptop since it is wireless...

Guy 2: Wowwwww, failsaurus rex and a half...

Failsaurus Rex by nightcrawler0188 April 7, 2010

The Rex Ryan 

when you dress up as your brother and fuck his girlfriend.

Tom- How did you get with your brother's girlfriend melanie?

John- Simple, I pulled The Rex Ryan.

The Rex Ryan by Dorothy Babson November 28, 2010