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Ad undas

An expression (used excessively in Norwegian) of latin origin meaning to the waves, often used when you've failed and everything's going straight to hell.
The US economy is about to go ad undas
by Euphory August 16, 2011
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Undiscovered Worlds

A segment of the Universe located between Grauman's Center and Sector 8. The most mysterious part of the Universe, Undiscovered Worlds is a swirling vortex of enigmatic matter.
You know the universe is a little bit like the human hand. For example you have Grauman's Center right here, and then you have Undiscovered Worlds, and uh, um, Sector 8, and up here, it's the, uh, Tittleman's Crest.
by Stiverton December 18, 2012
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undo the badness

A desperate, exhaustive attempt to, by any and all means available, reverse corrupt thinking and/or behavior that results from the persuasive influence of a malevolent, toxic or otherwise destructive agent.
So just when we thought we had salvaged him from the darkness of his peer-group inspired conduct, we were out-done by a fucking Snatch-Chat ambush; let's just hope that we can undo the badness...
by YAWA August 5, 2017
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Once you go blue, you can't undo.

The phenomenon in which a normal conversation turns blue, becoming so riddled with sexual innuendo that it's rendered nearly impossible to steer back in a non-pervy direction. Every innocent comment starts to become a dirty double entendre, until eventually the entire conversation turns into a complete smut-fest from which there is no return.
Girl: Ah, who doesn't love stripper zombies in Portland? That'd go down like Jesus on a velociraptor.

Guy: I have to admit, when I first read 'go down'... I had rather blasphemous thoughts.

~ten minutes later, during which this term is invented~

Girl: Hmm, this Urban Dictionary thing is quite fun. Something for the annals of history.

Guy: Two n's - one 'n' is bad.

Girl: Yeah, I always thought that 'annals' was an odd word.
It really could so very easily be another.

Guy: Terribly easily. So, how is the entry? ...Oh, Jesus!!!!

Girl: Once you go blue, you can't undo.
by The Terror Twins August 3, 2010
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Undestructible

Similar meaning to Indestructible. used when too drunk to remember the proper prefix.
Bob: Dude, check this phone out. It's totally undestructible!
Tom: Don't you mean indestructible?
Bob: Don't judge me!
by Silverraider05 January 27, 2011
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Unpose

A spontaneous photographic moment capturing natural, unpretentious beauty.
Put the pout away and unpose, because you're at your most beautiful when spontaneous.
by Veet India September 7, 2018
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undofercople

(verb) a very unique type of understanding that specifically relates to inside jokes between friends who enjoy puns a bit too much
I can't undofercople why people don't like puns, they've truly groan on me!
by amongthestars September 12, 2019
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