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The sudden onset of sleepiness which occurs shortly after taking a dose of NyQuil.
I took some cold medicine last night and I don't remember falling asleep; I must've had Nyquilepsy.
by Cloclia December 20, 2013
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Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
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