1 definition by ryersonian

Top Definition
An oh fuck nap. Falling asleep with the intention of closing your eyes for a second only, then awaking several hours later accidentally.
My nano nap turned into an oh fuck nap last night.
by ryersonian August 14, 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.

×