unbeer 

Where you'd rather not drink with work colleagues in case you say something.

Telling your (non work) friends 'its an unbeer tonight'

unbeer by plasticspam December 19, 2008

the unbearable lightness of genius 

the unbearable lightness of genius is an affliction that affects only one person in the entire population of earth and this person is a guy named Seán (who is also affected by the unbearable lightness of awesomeness too but that's for another day)

when Seán woke that morning he was suddenly overcome by the unbearable lightness of genius...he knew that Wordle didn't stand a chance that day. unrelated... he also looked super hot.

the unbearable lightness of genius by dats wight wabbit April 3, 2022

Unbereavable 

Someone who is not worth missing.

That guy jerk is an unbereavable a-hole!

Unbereavable by Bones McCrackin June 7, 2018

unbeelievers 

a one direction twitter groupchat known for their “the bees are buzzin fancam.” created on a whim, the chat quickly gained some attention as people tried to figure out what the name meant. what it truly means still remains a mystery.

the unbeelievers are kinda annoying but.. i still want to know wtf that name means

unbeelievers by sallywalker# October 24, 2020

Unberieveabre 

The asian way of saying unbelievable that shows an ecstastic state of pleasure.

Ooohohohoo! Jose you make orange chicken sooo goood! It's unberieveabre!

Unberieveabre by ThatDoosher May 16, 2009

unbefriended 

To dump someone who you were helping out after they start acting like a crazy fool

I unbefriended her after she started acting crazy for no apparent reason.

unbefriended by Jack Epstein October 27, 2013

unbearingly 

Unbearingly is sometimes labelled simply as being an incorrect word, and that the correct word for it is "unbearably." However, in slang, these two words mean different things. Unbearingly means to not be able to stand something to the extent that it is "breaking your back," or troubling you severely, and so you want it to go away (or desire to get away from it).

Here is an example of the difference between "unbearably" (which is a real word) and unbearingly (which is slang and not accepted in formal writing):
"That person was unbearingly nice" means that they were so nice it was unpleasant, perhaps annoying, or in some fashion distasteful. You didn't like it and were happy to get away from them. However, "That person was unbearably nice" means the opposite: the person was so nice, you could not resist them; you couldn't resist falling for their charms, essentially, and will likely look forward to seeing them again.
Of course, slang and "incorrect" terms differ by region, and in some places these two might mean the same thing, but where I live they do not.

unbearingly by StarryMountain April 12, 2012