Ugly is used as an expression of how DISGUSTING and not normal something is. People use ugly for situations when your friend does something so stupid that you can't even describe it in any other way other that yelling out UGLY!!! You can also use it as a pronoun to replace a person (dude, friend, my dude...ect.)
1.A word that 5 year old boys call pretty girls because they are immature and don't know how to express their feelings for a girl so they tease them instead.
2. A word that sometimes people genuinely use when someone is really, truly, genuinely ugly. Pretty rare, though.
3. Used by popular guys in school, usually in refrence to an unpopular or weird girl, even if she isn't ugly in the least bit.
1. Johnny: Eeeeew Kayla get away from me! You're ugly! You have cooties!
Kayla: SHUT UPPP!!!
2. Deb: Have you noticed that Mrs. Red has a beard growing?
Olivia: Yeah, omg... she's so ugly!
Deb: I know! Probably some hormonal disorder. don't make fun.
3. Peter: Dude, you know that Sara girl?
Josh: Yea man that girl is f**king ugly as s**t!
Peter: Whata loser.
A word used by arrogantassholes to make them seem like they are the most beatiful person ever and the person that they are calling "ugly" as a lower lifeform.