The anger that comes out of nowhere when you've had the extra 2 or 3 cups of coffee that you're body's not used to.
Did you see Jeff get all bent out of shape over that car pulling out. He's always so nice. With all the bawls bottles in his backseat...that's the look of "Caffeine Rage".
Liking every post on Facebook out of purely moral intentions but irritating everyone on your friends list.
He had 2 shots of expresso, and double brewed coffee this morning before work. He is on a caffeine rage!
Studying for finals and realizing you only had 2 hours of sleep. This calls for caffeine rage.
They stopped caffeine rage because it's bad for their health.