1 definition by J. Newby

Top Definition
A combination of "ugly" and "motherfucker" Proudly thought of by the Newby/Howard family
"Quit being dumb ugmo"
by J. Newby October 20, 2004

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.