look up any word, like pussy:
 
1.
The best starcraft player in the world.

Won GOM-TV's intel classic 2008.

He is of Korean descent (obviously)

Only person that can successfully play an Iccup map with only 8 pylons.
Dude I never thought i'd say this but Bisu is so good at starcraft i've been having gay thoughts about him.
by Hasjustbeenpwned March 02, 2009
 
2.
BISU stands for the Beijing International Studies University. It is a famous university in Beijing, China. It is the third best foreign language university in China. BISU is famous for its Japanese language study and Tourism Management.
Li is a student of BISU. After graduation, he went to work in Sony.
by frank2300 October 05, 2011
 
3.
Fart. The Comanche word for "flatulence," used as slang in Oklahoma, especially among Native Americans. It's pronounced "bee-soo."
*Sniff*
Did somebody bisu in here?
by Avram Fawcett June 02, 2006