rex 

the generic name of any dog named by a person lacking creativity. or the generic name of any dog on a television show or cartoon.

kid 1 "is that your dog"

kid 2 "yeah his names rex"

rex by nativenick October 15, 2006

Rex 

Rex is an alcoholic with schizophrenia, who lives in a mechanically disturbed environment, and who enjoys the occaisonal suicide attempt.

I am Rex's imaginary friend.

Rex by Fairy Sacks November 24, 2003

rex 

noun: rex
adj: rexy

One who avoids food for the purpose of achieving skeletal sexiness.

If you want to be a hot bitch, you better become a rex. Otherwise you should just commit suicide.

rex by team anus November 24, 2003

Rex 

my sweet little boy

rex: hello
me: *fucks passionately *

Rex by FlyLvr April 6, 2022

Rex 

A gay fat fuck who no one likes for very obvious reasons

Jeez Rex rlly is a homo

Rex by RalfCKS November 16, 2019

Rex 

Nickname for Mazda RX-7's

(or any car model that has RX in the model designator. ie. CRX)

"My riced out civic was just eaten alive by a rex"

Rex by Adrian May 13, 2005

Rex 

adj: A word used to describe a person who moves like a T-Rex.

"Wow, look at her, those shoes make her a rex." "Well, yeah she is a swagger jacker by stealing that outfit idea, but at least her skirt makes her a rex." "he is so fucking hot, but he moves like a rex."

Rex by aboomboxisnotatoy April 6, 2009