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1. non-alcoholic hangover
A non-alcoholic hangover happens when someone has not eaten all day or has very foolishly consumed a large cup of coffee then taking a standard dose of dayquil, resulting in a headache that resembles a hangover.
John Doe: I have such a throbbing headache.

Jane Doe: Why?

John: I have a terrible cold and I took some medicine after I had my morning cup of coffee.

Jane: You have a non-alcoholic hangover.

John: Sure feels like one.
2. non-alcoholic hangover
When you feel like crap, have a headache, and basically all other hangover "symptoms" without drinking

Paying the price of getting wasted, without drinking alcohol

Getting wasted, without getting wasted, and then having a hangover- because you partied that hard;]
Girl: I have such a bad headache, and I feel totally dead. Partied hard last night.

Friend: drank a lot huh?

Girl: No...I'm having a non-alcoholic hangover..it's pretty ugly.

"I woke up this morning with a non-alcoholic hangover...and my mom thought I had drank last night. So I'm grounded. Guess I can't be the designated driver man"
3. School Hangover
When you fall asleep in class, and literately pass out. When waking up, the following symptons may occur:
1. Drooling
2. Cowlick
3. Dont remember anything( where u are or whats going on)
4.eyes burning from light
5. major headache

THIS IS NOT RELATED TO A DRINKING HANGOVER
Today, only having an 1 of sleep the night before, completely passed out in the middle of a science lecture. When i woke up, drool was everywhere

Me: Where am I
Friend: You just had a school hangover
4. Super Bowl Hangover
1. The aftermath of alcohol use during the Super Bowl
2. The drowsiness and fatigue after staying up all night watching the Super Bowl(non-alcoholic)
I woke up this morning with a Super Bowl Hangover after celebrating my team's win late into the night.
5. hair of the cat
drinking non-alcoholic beverages to relieve a hangover, especially when others in the area are engaged in consuming alcohol to feel better. An antonym for "hair of the dog" and alluding to one drinking like a pussy.
Person One: "Bartender, I'll have a Diet Coke."

Person Two: "Why aren't you having a beer, you puss?"

Person One: "Bad hangover. Hair of the cat."
6. Testing Hangover
The feeling one gets after participating in a) Challenging test, b) Long, strenuous test, and/or c) A test in which one had no clue about what any of the questions were about. The feeling includes tiredness for a few days, induced feelings of senioritis, the will to say fuck school, headaches, and sluggish-mindedness afterwards for awhile.
Jerry: Dude, what happened to you? You look exhausted!
Lean: I just had an AP test yesterday, I'm on such a testing hangover..
Jerry: So I guess we ain't hanging out today?
Lean: Hell no, I need more sleep, I wish school were to end, and I have a massive headache!
7. Total Zombie Mode
Feeling completely dead, but having to live your daily life.
Feeling like the walking dead

Could mean feeling totally wasted, having a hangover or non-alcoholic hangover causing this feeling, etc.
Friend: how are you.

Pete: blehhhuhhh...umm.... *starts snoring then wakes up* uhmm, what did you say?

Friend: God man, you look dead. Someone's in total zombie mode huh?:]

Pete: guess so man.
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