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8.
OSU
On stage urination. When someone who is on stage performing decides to urinate right there.
I didn't know Fergie liked OSU
by Amy Ger December 01, 2007
 
9.
osu
Oh Shut UP
by arran October 14, 2003
 
10.
osu
Oswego State University - In up sate New York on the shore of Lake Ontario
OSU, Home of the Lakers
by Aaron Spencer August 08, 2006
 
11.
OSU
World's largest community college... located in Ohio.

A.K.A. TOSU, OSCC

Dear Buckeyes - "A.K.A." stands for "also known as"... the "k" is silent.
"My pappy says that I aughter go ta college, but I can't read too good."

"You should go to THE ohio state university."
by M Go Blue April 03, 2005
 
12.
osu
OSU--Oklahoma State University, located in Stoolwater Oklahoma. Largest community college for vets. Laughing stock of the Big 12.

OSU- AKA: "Shit-hole U". "shit kickers Univ".
"Man, I feel bad for those people that have to live in Stoolwater, next to OSU, I hear it smells like shit"
by boomersooner November 06, 2006
 
13.
OSU
There are three major OSU's out there.

OSU or tOSU = The Ohio State University
oSu = Oklahoma State University
osu = Oregon State University
The lesson learned from this is don't go to any of these OSUs.
by kevin4cardinals January 04, 2005