A feeling of intense regret and personal worthlessness after a night, weekend, week, month, or even year (possibly, but not always containing copious drunkenness/drug abuse) of moral turpitude.
"How was your weekend?"

"Oh, man, I got drunk, had sex with my friend's sister, crashed my dad's car, and told off my best friend. I've got a serious moral hangover."
by JLB3 August 15, 2005
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The sickening feeling you get when you wake up after a party or otherwize crazy night. You feel okay until you suddenly remember what you did the night before. Except bedrest and pepto bismol wont fix this one. Questionable hookups, an unknown venue, random writing on your body, unexplained costumes, and a real hangover often accompany this. Most often your first words of the morning are "what the hell did I do last night?"
Hey that party was awesome last night! You hooked up with so many people! You were crazy.
-Tell me about. This morning I had the worst morality hangover when I woke up handcuffed to my dining room table wearing some other guys's boxers.
by Kristina R September 10, 2006
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The sickening feeling you wake up with when you have partied too hard the night before. Regretting the crazy thing(s) you did last night and feeling very bad about yourself. Related to drinking, hookups, drugs, ect.
"Hey, wasn't Alexa's party fun the other night! Yeah! It was wild"

"Yeah it was fun, but the next morning I had such a morality hangover"
by Kristina R September 5, 2006
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