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1.
in other words, Fuck You.
usually people says..FU instaed of using full sentence.

Jonatahn : Our office is really quiet. what is wrong?
Maybe Kimberly is on vacation?
Wendy: FU from Kimberly~~!!

Jonathan: What does it mean 'FU' ?
Does it means 'Fuck You'?
HR~!!!!
Wendy: Don't be serious man~~~it means 'Fred Uncle'
I have no idea... what are you talking about?
by Homerun Lee September 27, 2006