Top Definition
Along the lines of kthxbye. A quick and rude denial/rejection of whatever was asked or offered.
Guy: hey what r u doin 2nite? wanna watch LOTR ROTK?
Girl: umno
by B March 31, 2005

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.