by okaytoday April 21, 2006
(n) a one time occurence. An ad-hoc exception to rule. Corporate jargon meaning that you'll do it once and not repeat.
by tg28 November 08, 2006
Chiefly British.
-adjective
1. one of a kind; unique.
2. done, made, or happening only once.
-noun
3. a one night stand.
4. something done, made, or happening only once.
This began as a British expression but is now known in the US and elsewhere.
Eddie: Say what?! You base-jumped off the Empire State Building? Were you insane?!
Johnny: Hey, it was only a one-off. I was a turk lad at the time and a little drunk, and I don't think I'd ever have the courage to do it again.
by Raven Grace October 23, 2007
short for One of a Kind
by scottyonapotty February 03, 2005
by pikeplacemarket June 18, 2009
A quick (often anonymous) one time sexual act with another of the same or opposite sex which ends in climax.
Dude, I can't believe that had a one off with that cop to keep from getting a ticket.
Damn, you really had a one off with that hot soccer MILF behind the beer stand?
by Big NYC Jay June 25, 2008
by Gamurman November 13, 2011