T-rex hand 

A serverely deformed hand and wrist which in turn resembles that of a tyrannosaurus rex. There cannot be more than three fingers and one thumb. It is most deadly when the host is an otherwise hot chick. Beware.

"Man, that girl was all up on me and then I saw the T-rex hand and I had to get the fuck out."

T-rex hand by JimmyJack August 26, 2006

t-rex hand job 

To be masturbated by a person with ataxic cerebral palsy. A person with this birth defect has one or two small and withered arm resembling the arm of a tyrannosaurus rex.

I don't care what you say about her being a freak! I love the t-rex hand job. It makes my unit look huge!

t-rex hand job by lowtarsmokenfool July 3, 2010

T- Rex Handshake 

Whilst giving a hand Job the girl puts her elbows into the sleeves of her t-shirt/Top, giving the impression of T-Rex arms

Dude 1: My girlfriend gave me a T- Rex Handshake last night.
Dude 2: She's a keeper

T- Rex Handshake by Ghandi179 April 12, 2013