1 definition by Smeg Me

Top Definition
An abbreviation for (S)hut (U)p (M)ove (O)n.
Dude, you really need to SUMO!
by Smeg Me July 15, 2012

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.

×