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
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 15, 2010

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