unloosen

The opposite of loosen. Often used when referring to removing hardware, however it actually means to tighten. An oxymoron.

Hey bill, unloosen that seat bolt so I can sit on my bike.

by J25 September 8, 2005

unhookupable

Beat, wack, mad scathed in the genitalia area, beautifully challenged, anti-hott, so ridonculously fugly that no testosterone-possessing human would ever consider in their sober or non-sober state-of-mind to think about in any shape or form every touching even their pinky toe to this human being

John Robert Weiss: On a scale of 1 to 10, what would you consider Fat Jess

Check: Unhookupable

by John Robert Weiss December 7, 2004

uncool

uncool does not exist independently; it is merely the absence of cool, cool being facial hair; thus, uncool is the absence of facial hair.

That guy is so uncool; he shaves his beard and mustache.

by godric34 January 16, 2008

UnknownAggregate

Jackass from Newgrounds.com

Vote 0 for his movies

by Strawberry Clock Version 2 March 22, 2004

UnknownHacker

A cheater slash cheat maker in americas army.

UH 2.1 a common cheat made for americas army by UnknownHacker.

by RAWRRAWRRAWR December 18, 2007

ungood

surfer's term for bad

Dude, that wipeout was totally ungood.

by The Dude September 12, 2003

UNKO

A fan made gaming forum dedicated to the online game, Knight Online. UNKO is slang term relating to Unofficial Knight Online.

Have you been to the UNKO forums lately? Much better than official.

by anonymous23124 June 19, 2010