ITYF 

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"

ITYF by Harry Sargent June 18, 2008

ITYF 

I Think Your F^%%ked

Ben: I was supposed to be home early today. Damn. She is going to be pissed.
Joe: ITYF

ITYF by Victuk June 30, 2008

ITYFM 

Acronym for "I Think You Failed Math" or "I Think You Fail at Math"

"I skipped two of my six classes today, but the three I did go to were totally worth it."

"Uh, dude, ITYFM."

ITYFM by czyo March 2, 2009