When someone or something sounds so farfetched that it is beyond belief.
"Did you bang that chick?"
"yeah, It was un-fucking-believable!"
by Ben Jammin February 10, 2005
Get the un-fucking-believable mug.
1. A term to describe something purely awesome and UN-FUCKING-BELIEVABLE!
2. Christopher Walken's hilarious line from the PC game by Take-Two, Ripper.
by Jewfro man December 11, 2009
Get the un-fucking-believable mug.
1) exclamation regarding something that should not have been possible to do.
2) exclamation concerning or referring to something which is impossibly astounding and/or astoundingly impossible.
Did you see the size of that guys smegma? Un-Fucking-Believable.
by Opus May 5, 2003
Get the un fucking believable mug.