When a person drinks too many caffeinated drinks, and gets so hyper that they shake. Eventually this leads to a crash.
Her caffeine high was so intense that she couldn't sleep for hours.
by bubblegal12 October 10, 2013
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Someone who has had so much caffeine that they seem like they are on crack.

Consuming so much caffiene that you never sleep or eat and look worn out all the time.
- Everytime I see that girl shes drinking a rockstar, and acting all crazy.

- Yeah, shes a total caffeine crackie.
by caffeinequeen October 23, 2007
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A person who cannot function without regular caffeine fixes. A person who drinks most of the coffee in the coffee room, leaving none for anybody else. A person who will borrow money or steal coffee just to get a fix.
"There's no coffee left, that caffeine whore drank it all."
by Jeanette February 16, 2005
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The time at which caffeine is required to commence or continue mental and/or social function. Most common towards the end of the week or during a night shift.

See also "half past caffeine"
Person 1: "You've been staring at that screen for an hour, and haven't done a thing. You know this work's due in an hour right?"

Person 2: "Yeah, I got like four hours sleep and can't concentrate. It's definitely caffeine o'clock."
by archangel62 May 28, 2009
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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".
by alohaman November 13, 2008
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The unfortunate bowel movement that usually occurs after your morning coffee.
That cappucino was STRONG!!! I've gotta go hit the toilet for a caffeine spray!
by BJG83 November 25, 2010
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Being a caffeine addict and not having access to or means to procure caffeine. Usually followed by headaches, irritability, slight weakness, disorientation and possible sensitivity to light/sound.
"I ran out of coffee and I'm broke until the 15th, which is three days from now. I guess I'll be taking a little trip to caffeine hell, but on the third day I will rise again."
by sweet_sagittarius January 12, 2012
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