Fred's Uncle 

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

Jonathan : 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's Uncle'
I have no idea... what are you talking about?

Fred's Uncle by Homerun Lee September 28, 2006