Top Definition
Flash Delirum is temporary insanity. One may experience a case of flash delirum at any point in ones life.
Patience: doc, ive been having these wierd reocuring dreams lately about strange alien life-forns and things just dont seem right.
Doc: i think we have a case of FLASH DELIRUM!
by gethighonlifenotdrugs May 18, 2010

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