The act of masturbation.
Sorry I'm late, stopped for a quick short arm shifty in the car.
1: To draw arms, on a peice of a paper with pen.
2: To get out your pistol and blap your enamy or fellow gangster!
Gangster 1: Blad dont get rude
Gangster 2: Blad wana draw arms?
A person who masturbates so frequently that one of their arms is more muscular than the other. (Can be either genders)
"Ever since Corey hit puberty one of his arms is super muscular, I think he's becoming an arm man."
The unbendable arm is when you put your right arm on someone else's shoulder and without flexing, have someone push down on your arm. If done correctly, your arm won't bend...
If you happen to be brave and have a tough arm, then you can have someone hang from it, and do pull-ups if they're up for it
Yo Julie, come hang on Brandon's Unbendable Arm!
The Unbendable Arm is trippy yo!
Let's try The Unbendable Arm Tonight at my party!
A condition in which the person's arms resemble cottage cheese.
Looks like that Jennifer girl's got a mad case of the arms.