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1. sugar hangover
when you have too much sugar so you have a stomachache, you're really tired, and have a headache
i ate too much candy in an hour so i had a sugar hangover real bad.
2. sugar hangover
the undesirable taste in your mouth 30 minutes to one hour following the eating of sugary foods
Person 1: Dude, that brownie batter we ate was so good!

Person 2: Yeah but now my mouth has a total sugar hangover

Person 1: Gross.
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