Rage Fatigue is what happens when you hardcore rock out to Rage Against The Machine at home, with friends, at their concerts or some other random place for extended periods of time. Example: 6 hours of non stop Ragin' and throwing the Fistagon in the air would be enough to cause Rage Fatigue.
guy 1: whats wrong with your eyes man?
guy 2: i totally fuckin hardcore rocked out to Rage Against The Machine for 10 hours straight yesterday and my eyes were bleeding wicked insane yo, i got mad Rage Fatigue.
guy 1: damn your hardcore, anybody that rocks to Rage like that is fuckin intense