Definitions by Sexy Pess

Gorilla-arms 

A person who has large forearms but small shoulders; resembling the arm of a Gorilla.

Dude: Wow Bro, that girls got strange/deceiving arms! So large in the forearm, but so small around the shoulders.

Bro: No Dude, those are gorilla-arms.

Gorilla-arms by Sexy Pess May 15, 2009