An UUG (pronounced "oog") or undisputed uninvited guest is a person whom invites themselves to hang out (Netflix and chill) with the intent of engaging in sexual activities without the expressed consent nor the disapproval of the other party.
by Cicciofer May 22, 2017
Get the UUGmug. A word used by the future president of the United States; meaning a large amount of awesomeness; a heavy amount of political rightness.
It's gonna be UUGE!
by Hello2016 April 20, 2016
Get the uugemug. by peaz (felix) January 24, 2009
Get the uug@$hm3kkmug.