Pms-rex.

when a female is being over-dramatic about pmsing, and starts acting like an angry t-rex.

guy1"wow whats wrong with her?"
guy"no clue but she's being a pms-rex

Pms-rex.

by N3 May 2, 2010

pelican rex

a pelican that flies away on jurassic park but is mistaken for a pteryaldactyl..therefore its a pelican rex!

Taylor:oh shit the dinosaurs got out!

Jordan:haha no they're pelicans

Taylor:What noway!

Jordan:they must be pelican rexs'

by p-rex-inator December 3, 2009

Octavius Rex

A character present in Spongebob Squarepants. He appears in the episode "The Chaperone", and is revealed to be Pearl's ex-boyfriend. In this epsiode, he appears as a skinny, orange-brown fish with large, black glasses, black eyes, a bald spot, and a green sweater. He is often described to be "long, tan, and handsome", making the name Long, Tan, and Handsome an alias of his. Octavius Rex is an anchovy, which means his main language consists of the word "meep".

The reasoning for Pearl and Octavius's break up is unknown, but a reconnection at the prom provides Octavius a chance to talk to Pearl. Pearl, unfortunately for Octavius, rejects him.

He is portrayed by Roger Bumpass.

Wow, that guy is a total Octavius Rex.

by PaperclipGoonies July 3, 2016

penisaurus rex

the condition of a mans penis after he ejaculates

his penis is so small when it's in it's penisaurus rex mode.

by boomchild56 December 15, 2014

T-Rex

When you're sitting on your girlfriends face for a blow job and you have her arms pinned down with your legs, and yell at her to use her hands. The attempt she gives is considered a T-Rex.

I T-Rex'd my boyfriend last night. It was glorious.

by Yubin Yankinov February 2, 2013

aggasaurus rex

the form of being agger than agg, ultimate agg, an agg dinorsaur, also look at agg

Man did you see john do that run through? He's an aggasaurus rex!

by Davo Kanavo February 12, 2007

t-rexing

When you hug someone from behind while their arms are to their sides. The person being hugged can only move their arms up to their elbows therefore appearing to have short arms like a t-rex.

I like it when my girlfriend roars as I'm t-rexing her.

by Guymal October 20, 2008