Unfucking Believable 

Something so unbelievable it's incomprehensible or something that is hard to believe.

Being abducted by aliens is so Unfucking Believable.

Unfucking Believable by Nichole McKnight September 26, 2009

un-fucking-believable 

When someone or something sounds so farfetched that it is beyond belief.

"Did you bang that chick?"
"yeah, It was un-fucking-believable!"

un-fucking-believable by Ben Jammin February 10, 2005

un-fucking-believable 

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.

This guy, is UN-FUCKING-BELIEVABLE!

un-fucking-believable by Jewfro man December 10, 2009

un fucking believable 

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.

un fucking believable by Opus May 4, 2003

unfuckingbelievable 

so unbelievable you have to add fucking for extra umph!
.. my FAVORITE word ..

UnFUCKINGbelievable! I would have never thought that drinking 18 beers could make anyone so hott!

unfuckingbelievable by Errn April 8, 2003

unfuckinbelievable 

when unbelievable just doesnt cut it

the idiot in linguistics said "i had 2 girls making out on my lap as i was taking a bong hit and i was just like "unfuckinbelievable""

the way she treated me was unfuckinbelievable.

unfuckinbelievable by britt May 13, 2005

unfuckingbelievable 

When something is so hard to imagine, that you just can't fucking believe it.

Did you see that jerkoff pull out in front of my car and almost hit me?!
That was just unfuckingbelievable!!!

unfuckingbelievable by Sandra April 14, 2005