Top definition
Ugmo -noun
pl-ugmos

An ugly monster. Lisa Simpson once said it.
Jen:

"some of them are gorgeous, some of them are plain, a few are ugmos"

Or, from The Simpsons:

Lisa: I'm an ugmo.
Homer: Now, that's not true. You're cute as a bug's ear.
Lisa: Fathers have to say that little stuff.
Homer: Dad, am I cute as a bug's ear?
Grandpa: No. You're homely as a mule's butt.
Homer: There. See?
by Thomas D March 10, 2006
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2
a relatively unattractive female considered hideous to even people with virtually no standards.
WILHELM: do you guys think my girlfriend vera is hot?

COLIN: you mean that hideous goblin over there?

CARL: dude, calling her a goblin is flattering, shes a fucking ugmo!
by ronnie_e July 29, 2010
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3
ugly mother fucker, these are the two words combined to form ugmo.
man that mattew deveraux kid is a fukin ugmo
by raaal April 06, 2005
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4
Abbreviation for ugly motherfucker used to describe a person or object.
I'm not sleeping with him; he's ugmo.
by Elaine October 17, 2001
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5
A combination of "ugly" and "motherfucker" Proudly thought of by the Newby/Howard family
"Quit being dumb ugmo"
by J. Newby October 20, 2004
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6
Really ugly loser who keeps staring at you, and is the type you wouldn't touch, much less date.
Who are looking at UGMO?
by kasmisan June 13, 2010
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7
Someone that gets ulgy more and more by the day.
Look at UGMO over there, now he know he need to get them teeth fixed and remove the jerrycurl juices from his head.
by S!ngle_2k November 19, 2003
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