Stands for "In My Opinion". The term is brutally destroyed over and over again on many message boards.
Fanboy: "IMO, Halo 2 sold, IMO, 2.4 million copies, IMO, in one day, IMO. IMO, IMO."
Me: "For christ sakes. SHUT UP!"
Me: "For christ sakes. SHUT UP!"
by Justin H. April 30, 2005

a ghetto pimp pizza place located in st louis and kansas city that all the playas and ladies show up and get the party started.
by aldskfhlkdsa August 29, 2005

Stands for "In My Opinon". The most insecure way to state your opinion. Used by those afraid to get into a big argument with someone who disagrees with them.
Using IMO makes you a pansy of the internet message boards. If someone barks back at you for stating it as a fact, let them. If they don't understand that it's an opinion, that's their problem.
by Durango September 17, 2008

by Gamertag? August 18, 2006

International Mathematical Olympiad
A competition that only the smartest people in the world can join.
A competition that only the smartest people in the world can join.
by Vince September 20, 2003

by hewameye February 3, 2012
