Text messaging abbreviation for "I fucking love you".
Also can be used at the end of e-mail or blogging exchanges and personalized by adding the recipients initial to the end.
Jersey Girl types a comment to Dr. Debutante on Myspace that says..."Thanks for the great party!! IFLY!!!"In which then Dr. Debutante would respond..."IFLY2JG!!!"
An acronym for the phrase "I fucking love you." Typically used by prisoners receiving hand jobs under the table during visiting hours, horny 8th graders and fans of the 80's rock band Whitesnake.
Erin, IFLY. Meet me in the first floor bathroom so I can finger you. Or,
I can't believe you traded an 8-ball for third row Ratt tickets. IFLY!