1. Adj. Used to describe anyone or anything suffering from almost any kind of retardation.
Refers the forearms of a T-Rex which, although the best dinosaur, suffered from tiny stunted dinosaur arms.
It is thought that T-Rex suffered from the aforesaid cripple-tastic limbs because otherwise, it may have been just TOO awesome.

2. Insult used when someone does something retarded.

1. (Dinosaur Arms Sufferer, let's call him Colin): "Woah hey guyz, I just heard that homosexuals are gay!"
(Cool Dude): "Damn, that Colin is SO Dinosaur Arms"
(Hip Fellow): "Word to your Mother"

2. (Colin): "Zomg, I just dropped my pocket on the floor!"
(Cool Dude): "Dinosaur Arms"

Dinosaur Arms by SirPsychoSubmarine March 21, 2008

dinosaur hands

When your hands and/or other limbs lose feeling and stay in cramped position while receiving great oral sex.

He went down on me for so long, I had dinosaur hands when I came!

He gave me dinosaur hands last night, he's a keeper.

dinosaur hands by h-pants September 6, 2010

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