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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
Chi O by Pike4Life June 17, 2006
Related Words
Chi-phone (noun) A counterfeit i-phone made in China and sold cheaply on the internet, usually of poor quality and without the standard features of legitimate i-phones.
Kev: check out my new iphone, its well sik
Gill: dats not an i-phone, you can't download apps and the screen's all cracked. Dude, looks like you bought a Chi-phone
Chi-phone by El-man December 18, 2012

Chi-Chi's 

the spanish term meaning breasts boobs hooters or whatever ya call it. its also a mexican restaurant that has great fried ice cream!
hey that chick has great chi-chis
Chi-Chi's by gayloser August 9, 2004

Chi Chin Pui Pui 

Generally known 'magic word' in Japanese fairy stories, like "bibbity bobbity boo."
Chi Chin Pui Pui! BAAAHAHAHahahahahaaaaaaaaaa...
Chi Chin Pui Pui by Arnold Gwaalg November 22, 2010

chi-chi man 

more modern version of "batti-man" (gay person, or person with more 'feminine' tastes, and desires)
"Ha Ha, shit check tha chi-chi man drinkin his bacardi breezer"

or

"safe, nice perm ya chi-chi man"
chi-chi man by liam the safe September 13, 2005
A child molester-esque' person who gives off a creepy and/or negetive vibe.
Mr. Chandler is an utter chi-mo.

Mr. Chandler has a four year degree in chi-mology.

When I look at Mr. Chandler, I want to throw my arms in the air and shout, "RUN! CHI-RANOSAURUSREX!"
chi-mo by Kellixlovesxhugs November 10, 2006