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1.
IGU
Acronym for I give up.
Joe: So did you get any pussy yet?

Mike: Naa, she's being all christiany about it... igu.
by blissful0ne August 24, 2009
 
2.
Stands for I give up. Many meanings including giving up on homework, school, job, tasks, even on trying.
There is so much to do. I.G.U.
by izzyREAL May 12, 2009
 
3.
igu
I get you
whats 1+1?
i dont know?
its 2 :)
ohh igu!
by sgwww April 05, 2009