An ugly monster. Lisa Simpson once said it.
"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?
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!
ugly mother fucker, these are the two words combined to form ugmo.
man that mattew deveraux kid is a fukin ugmo
Abbreviation for ugly motherfucker used to describe a person or object.
I'm not sleeping with him; he's ugmo.
A combination of "ugly" and "motherfucker" Proudly thought of by the Newby/Howard family
"Quit being dumb ugmo"
Really ugly loser who keeps staring at you, and is the type you wouldn't touch, much less date.
Who are looking at UGMO?
An ugly homosexual man. Combining ug (ugly) and mo
Let's go to another club, guys. Too many ugmos.