unbeknownst 

1. happening or existing without the knowledge of someone specified —usually used with to <unbeknownst to us rumors were flying> (Merriam-Webster Online).

2. a word that pretentious pricks use to try to sound smarter than they actually are.

Unbeknownst to you, I have been fucking your sister for the past six months.

My dad has been sick for years, unbeknownst to the family.

unbeknownst by TCAcycle February 5, 2010

unbepissed

To not be urinated on

e.g. "Last night, I was unbepissed"

unbepissed by Kinky Joanna Sauce February 13, 2009

Unbeaten Path 

When choosing your own adventure through a porn website and your journey takes you down a path you have never beaten it to before.

Bernie: Yo bro, last night I was romanticizing myself down an unbeaten path, it got weird fast.

Rob: Got to be careful of those unbeaten paths man, dangerous stuff.

Unbeaten Path by BTones81 June 2, 2019

Unbelowthable 

Not able to be believed; definitely not true. When something is so outrageous it’s more than just unbelievable.

Your attitude is absolutely unbelowthable.

Unbelowthable by K-Bom-Ba October 31, 2019

unbenounced 

How fucktards try to spell unbeknownst.

Unbenounced to us, he was retarded the whole time.

unbenounced by Spelltwit February 23, 2009

Unbelievable Tekkers 

Andy Ansah's version of "Unbelievably good technique" used on Wayne Rooney's Street Striker. Later used by Soccer AM.

Some Tekkers Are Good
Some Tekkers Are Bayyad
But Some Tekkers...
UNBELIEVABLE TEKKERS

"The Boys Are Coming In With Some Unbelievable Tekkers"

Unbelievable Tekkers by LewisFoster February 6, 2010

unbelieberable 

It is a well known fact that screaming moronic jackasses are beliebers. This leads for a need of a word to describe when something unimaginably stupid occurs. This is the birth of "unbelieberable." Formulated by Corstin Dodant, the most interesting, semi-bearded nerd in the world.

It is unbelieberable that certain individuals "belieb" that the formula for the circumference of a circle is pi*r^2.

unbelieberable by Corstin September 17, 2014