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Nickname for the sorority Chi Omega. Founded in 1895 at Arkansas University, Chi Omega is the largest women's fraternal organization in the world with over 300,000 initiates and 170 collegiate chapters. Chi O's are beautiful, classy, friendly, and fun.

Some famous Chi Omegas include Lucy Liu, Heather Locklear, Sela Ward, and Cybill Shepard.
(After winning some competition as Chi O usually does)
Bitter Ugly ADPi: What the hell?!?! You are all just a bunch of Chi Ho's!!
Chi O: Don't get mad...get better.

David Letterman: "Chi O's were ideal partners for all occasions. They were discrete, desirable, tactful, polite and fun. Every mom dreamed of her son coming home with a Chi Omega."

Open motto: Chi Omega - Having More Fun than you Since 1895
by Pike4Life June 14, 2006
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Singaporean/Malaysian slang for really good looking, attractive girl. Not in a girl-next-door way but in a really hot, sexy (and sometimes anime) way.
"Wa Lau! That girl is really Si-Bei Chio Man!!!!"
by KeNnEf! February 06, 2004
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The nickname for the sorority Chi Omega. Chi O's are discrete, desirable, tactful, polite, and fun. They are always the classiest girls on every campus. All the guys want to be with a Chi O, and all the girls want to be a Chi O.
Tommy: who's that really cool hot girl?
Jimmy: that's a chi o, duh
by greekgirl April 06, 2005
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An island in the Agean near the coast of Turkey that is known for its long list of shipowning families, remarkable architecture, incredible history, et cetera.
All Greeks know that people from Chios are the smartest Greeks in Greece.
by Chioti man December 15, 2003
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A word in dialect to describe a beautiful female. It is more commonly used in Singapore and Malaysia. Despite it's meaning,it is considered rude or uncultured to use this word to describe someone.
"Walao,that girl damn chio sia!"
"Wah,really leh! Eh,got chio bu sia!"
by TentacleAuxiliatrix January 05, 2014
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1.Mexican nickname for Rocio.

2.Nickname that only best friends are allowed to call their best friend, Rocio.
1.Aunt from Mexico: Hola Chio, como estas?
Rocio: Bien gracias, y usted?

2.Best Friend: Chio Girl! What were you thinking?!
Rocio: I love you too.
by r0wsea0h July 19, 2008
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