Top Definition
The insane hunger that starts to creep up on you the longer you stay up after midnight. By the time it gets to 3, maybe 4am, you're completely ravenous.
Kayla and I decided to pull an all-nighter, but her mom caught us grabbing snacks at 2am and told us to go to bed. Damn After-Midnight Munchies!
by PracticeSafeLunch August 06, 2010

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