Asian women generally and Japanese women specifically. From the observation that most Japanese female names end in "ko." (Michiko, Keiko, Mitsuko, Fumiko, Emiko, Hanako, Naoko, Yuriko, etc.)
I didn't think about attending this college until I noticed how many really hot koo sisters there were on campus.
by Dick Hertz May 8, 2003
Get the koo sistersmug.