Rex 

This guy has the longest and fattest dong you will ever see and can make a woman orgasm with a single glance. Like legit this guy is sick mans can inhale so much smoke from a spliff without even a little cough. If u ever find a Rex hide your girlfriend and just hand him all your weed cause this mf can smell that shit out like a dogg.

Girl - *instant orgasm noises*
Other bloke - *fuck here you go Rex heres all my ganja just take that shit*

Rex by The sickest homie ever July 2, 2021

Rex 

Rex Need to take a chill pill

Rex thinks he is all tough, but he needs a chill pill

Rex by Rex Machine March 11, 2003

Rex 

Rex is a fat boy they loves food and nothing else REX means he is slow with everything.

Rex means fat

Rex by Sarah is the.Queen October 11, 2018

Rex 

Rex is the type of guy that you can ask to help you bury a body. This tall, freckled dude loves using sarcasm no matter if people actually get it. His very nature is an oxymoron. He is a hard worker but barely works at out. He is really competitive about track but still constantly eats desserts. Rex is the kind of guy that will go on with his life whatever happens. He'll probably start his own business in whatever he wants in life. He's just rex. T-Rexy will always be there.........

Guy 1: Hey Rex, whatcha doing?

Rex: Huhhhhh?
Guy 2: REx is confused HAHAHAHAHAH!
Rex: Bye.

Rex by VegetableMan May 20, 2019

Rex 

A type of underwear with scented, as well as thickened fabric to support the utter grossness of the roast beef pussy underneath. Usually used when an individual's pussy-lips become so swollen that they put off a potent odor that stings the nostril.

When Trenton continued to bitch, bitch, bitch.. Joshua told him to go put on his Rex and get the Fabreez out of the closet.

Rex by sooheavy March 16, 2011

rex 

random ex. Use it to avoid naming or numbering your ex'es in front of your current mate.

That belongs to my rex.

rex by sepiaD July 22, 2009

Rex 

This is the idiot of all idiots. He thinks he is a stud but he's really a dud. Was likely named after the fathers childhood dog

Rex is a dumbass

Rex by I like Tucker April 24, 2017