Top Definition
The act of eating SO much Sugar, that the next day, you are completely drained of energy and say dumb things. Often acts like the effects of being drunk or high.
Bob: "Hey John"
John: "LOOOOK DUDDDDDDDDE A TREE"
Bob: "What?"
John: "ITS A FREAKING TREE!"?
Bob: "...... What?"
Fred: "He's having a Sugar Crash.
Bob: "Oh."
by SugarCrashisFun August 18, 2011
1 more definition
Feeling a lack of energy and extreme sleepiness associated with post sugar rush
Fuck, I sugarcrashed about three hours after the 24th snickers bar.
by animalzhu August 29, 2007

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