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1.
I Think Your F^%%ked
Ben: I was supposed to be home early today. Damn. She is going to be pissed.
Joe: ITYF
by Victuk July 10, 2008
 
2.
Acronym for 'I think you'll find'
Because sometimes FYI just isn't irritating and smug enough.
"FYI the dress code in this office is for ties to worn to all meetings"
"ITYF it is normal to dress-down on dress-down Fridays"
by Harry Sargent June 18, 2008