Abbreviated form of United or Underground Girls Network. The UGN is the reason why when one guy brakes up with a girl, almost every other girl in the world will know by the next day.
"You went out with him? Wow! quick, tell me the details so I can call Veronica.."
A Lithuanian girl/woman name. Fire in Lithuanian is ugnis, so girls with that name are real fire. Probably the cutest person you'll EVER meet. Cute laugh, cute face, probably a little chubby.
Kenji-DAMN, who's this cutie?
Lucas- Its my classmate, Ugnė .
Used to describe an ugly ass baby. Some children just aren't cute at all, as unfortunate as that is. So when you spot a really ugly baby, you can claim "UBS", as they're cursed with Ugnaught Baby Syndrome. The word Ugnaught refers to those ugly piglike midgets that froze Han Solo in Carbonite in The Empire Strikes Back.
"It's a good thing your baby doesn't have UBS (Ugnaught Baby Syndrome) because I'd just have to lie and say they were cute anyway, even if they weren't. Luckily, since your child is adorable, I can tell you that my fears of UBS kicking in were unfounded."
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).