A person who is a cheapskate or pennypincher. Like the dinosaur, this person's "short arms" prevents him or her from reaching into pockets to obtain currency.
"I was buying rounds of beer all night and that T-Rex never once bought me a drink!"
by Jason Marshall September 30, 2003
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a condition in which a persons arms are shorter than the average reaching well above mid thigh usually seen with taller people (people over 6ft). Also a condition in which someone who is larger has arms that are smaller and not in proportion
if the tip of your middle finger reaches well above you mid thigh you may have t-rex arms
by jannona July 17, 2009
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The act of a girl taking it in the ass and while she's riding she's making obnoxious dinosaur noises while making her arms look like a trex
Jeff and Leah were trying the T-Rex one night and all I could hear was loud raptor like noises
by Darnelloo June 6, 2016
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Imagine this scenario. It's cold outside, and you're wearing a half-sleeves shirt. To get your arms out of the cold, you pull your arms into your shirt, with only your hands poking out of the arm holes. That is called T-Rexing.
The weatherman said it would be 80 degrees, but it was so cold I had to resort to T-Rexing the entire time I was outside.
by Lumby_Jack July 15, 2017
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An individual who gives 0 fucks about another ones feelings. This individual will never been seen sad, and always be seen with a beer. This individual can be the goofiest and also the craziest MF you’ve met. Intoxication is a T-Rex’s best friend.
I’m a T-Rex, OUUUUUGHOOOOHHHH 3|6|7|3| : |19|
by Abooga booga October 29, 2019
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Consuming alcohol to such a point that two things happen:

1. As mentioned above, one holds one's arms in a perched position as a T-Rex might;

and 2. When attempting to walk, one stumbles around in a stomping fashion as a T-Rex might, often destroying whatever gets in the way.

Optional: A drunken roar every now and then.
by swoopaloop64 August 31, 2010
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The difficult act of preparing to root a kinky-type female with a bung eye. It involves retraining her arms so that her hands are only usable at shoulder level. You must then get her ready for action, switch off the light and jump into her blind spot.
Dondon: Bro, I scored this gammy-eyed nurse last night who was ripe for the T-Rexing. It took her fuckin' hours to find me in the darkness!

Fanwing: Bad cunt...

by Dondon May 23, 2008
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