A state of disorientation resulting from excessive combination substance abuse achievable only by the large available quantity of free drugs/alcohol found at parties.

The symptoms include (but are not limited to) :

-Forgetting time/place/date
-Oversleeping for mandatory events (Work, school)
-Losing otherwise sacred items (keys,wallet,phone)
-Calling people you've done a very good job avoiding for years, with an uncalled for sense of affection
-Waking up in strange, unsleepable places
Bro 1: *Bursts in room with 24 pack* "YOU READY FOR THE THIRSTY THURSDAY PARTY WEEKEND BRUH"

Bro 2: "Dude, its Monday. Arent you supposed to be at work? I think you got party dementia bro... where are your pants and why are you covered in mayonnaise?"
Bro 1: *sobs*
by Vaulterofmanylavas October 4, 2016
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