Top Definition
Constant racing thoughts that keep you awake before you sleep. Usually caused by troubles, upcoming events or excitments that stalk your mind. Duration: approx. 1 hour.
Brian "Dude you look like you can carry a small load of grocerries in those bags underneath your eyes!"
Marko " I know. I know. I kept having presomnthesia last night!"
by Daravouchi November 24, 2013

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