Top Definition
When one consumes so much junk food that the following day he or she feels still feels full, nauseous, sick, bloated and/or like crap. This usually occurs during but is not subjected to holidays such as; Christmas and Halloween.
Josh: Dude, what’s wrong with you?

Mike: Oh man, I ate so much at Christina’s party

yesterday. I think I have a junk food hangover.
by Thisonechick. December 19, 2010
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