The emptiness you feel in your stomach in the middle of the night, usually while watching commercials for pizza or Burger King.
Guy #1: Hey what did you do last night?

Guy #2: Ughh man, I was watching this movie on TV, and then a Burger King commercial came on for the Whopper JR. I realized I totally had the midnight munchies and I just had to get 50 of them things.
by Bill Tregen March 6, 2010
Get the Midnight Munchies mug.
The urge that comes around 1 AM to eat large amounts of snack food
John was pulling an all-nighter in WoW when he got the midnight munchies and grabbed a huge bag of Cheetos
by Trifarce August 1, 2009
Get the Midnight Munchies mug.
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 6, 2010
Get the After-Midnight Munchies mug.