A Grimmo is an adjective, used to describe a person/s. Usually it is used to refer to someone who performs the act of 'grimacing' more often than not. A true Grimmo is a person who negatively affects his/her surroundings- or grims them out. It has recently been adapted to be used as part of other words, such as: Grimbosauras Rex, The Grimminator, and Grimbo Baggins.
"That guy is such a Grimmo!"
"Will, you grimmed out the ash tray! Your such a Grimmo!"
"You see that guy over there, he is definitely a Grimmo, he just looks so grim!"
by The Military Genius January 19, 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.

×