Top Definition
A state resembling retardation of normal brain functions brought on by extreme fatigue and/or exhaustion.
"Hey, what's wrong? You seem a bit out of it." "Tiredation, man. I've been up since 4 AM yesterday, and I spent all of today hauling furniture around."
by Maryxus August 26, 2007

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×