A tennis elbow type condition caused by excessive, frantic masturbation while viewing porn or frantic, fast masturbation caused by lack of privacy (in dorm room, in men's room at work, etc). Once the condition sets in on one arm, the jerker often switches to the other, to rest the arm which is suffering.
1.Someone that makes you say: HOLY SHIT! THAT'S AWESOME!
2.Someone who is either kickass, hilarious, or both.
3.Also called Jermo.
4.Greek meaning: Kickass Motherfucker.