Sexual position;
The act of having sex with a person of small stature (ie. midget)

Titled such because of the length of the person's arms, and the flopping motion during intercourse.
Last night I went to the circus and ended up t-rexing some guy named Zonko.
by Rough Rose April 25, 2011

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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 02, 2013

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Describes a girl who is not fat but has a large body. She is big boned or stocky. She generally is taller than the average girl and is fairly strong/well built and manly.

This is a derogatory name often used by guys to describe a big boned girl no one knows the name of.
-Who's that new girl everyone's talking about?
-Uhh, I dunno.
-I heard she's fat or something.
-Oh yeah I know who you're talking about. But she isn't fat, she's just a T-rex.

-Dude check out that chick over there!
-Yeah I see her... She's too tall for my type. And she's kinda big and manly.
-Yeah, you're right, she's a T-rex.
by Crawfisch December 15, 2010

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The worst sex one can give/receive.
Bill: You gonna fuck this bitch?
Jeremy: Na man, if I get it in with that...it'll be trex no doubt
Bill: True dat, nobody wants trex.
by Travisthetrexboywonder March 19, 2013

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T-Rex is an adjective. One whose arms are in far greater demeanor than the body. A disproportionate person in the long run. One who walks funny and is very long.
Have you seen that kid AJ! He looks like a freaking T-Rex!
by DontWorryAbout It May 05, 2008

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When you are fucking a girl from behind and feel a sudden urge to eat. You bring your elbows to your abdomen and swing your arms like a t-rex. At the same time you lean over and bite your bitch on the neck. Since your arms are essentially useless, you now must keep her down by clamping harder and pushing with your neck. This sex position is similar to a T-rex when feeding.
I don't know what happened the PCP hit me, and I just t-rexed the bitch.
Damn bro, what happened last night, I walked in on you t-rexing some bitch and growling.
by UNSCD Gunner April 11, 2011

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Male counterpart to the female cougar. An older man having a midlife crisis and likes to prey on younger women.Likes to hang out at all the same spots that college kids do.Easily identified by a look of success, a flashy car, and wealth. Named for predatory nature and small brain size of an actual t-rex.
Young girl1: "Oh look over there at that old guy sitting alone at the bar."

Young girl2: "He's alone and wearing a designer suit, he must be a t-rex. I'm going over to say hi."
by chanchan88 February 07, 2009

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