A person, who's slightly shorter than normal arms make normal activities difficult. Also occurs when one's arms are significanly shorter that their partners, resulting in frequent resquests for assistance.
When laying in bed... Honey could you turn the lamp on, my t-rex arms wont reach.
by Cayman47 December 5, 2011
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'T-Rex Arm' :

When laying in bed cuddling your partner, and one arm gets trapped under both bodies/pillow rendering it useless, it is 'T-Rex Arm', i.e completely void of movement and use.Thus, similar to a Tyrannosaurus rex's arm.
Girl- Hey Todd, pass me the remote

Boy- I Can't i've got T-Rex Arm!
by P-Master-T June 1, 2009
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the way you have to contort your arms together at your chest when trying to work on your laptop on the airplane and the person in front of you leans their seat all the way back.
There's so little room when that bitch in front of me reclines her seat that I have scrunch up my arms to my chest like t-rex arms just to get some work done on my laptop.
by Laptop Junkie November 16, 2010
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This is the result of ataxic cerebral palsy. A person with this birth defect has one or two small and withered arm resembling the arm of a tyrannosaurus rex.
Wow did you see the t-rex arm on that chick????
by lowtarsmokenfool June 29, 2010
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Arm cramp that men may get as a result of spooning, when they can't figure out what to do with their other arm and its gets squished up next to their body
Jim had to deal with a baby T-Rex arm at work after spooning his wife all night without moving.
by Ninjetturtle June 29, 2014
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Someone who suffers from excessively long arms and can't grab anything you hand them close to their body.
Sorry I can't reach the pipe you are passing me because I have Reverse T-Rex Arms Disease.
by seanjblackwell March 5, 2014
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A symptom after getting the Covid Vaccine.
I got my covid vaccine yesterday and I cant lift my arm high. Totally have T-Rex arm
by Killrek May 12, 2021
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