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I fk means I Fucking Know
Person #1- Dude, you need to pay me back
Person #2- I fk
by Barnhart December 10, 2005
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I fucking know. Used in annoyance.
Clara got annoyed with Josh when he texted her “Do you know what a pencil is?” She said “Ifk!”
by Madelyn’s DEFFYS! June 23, 2018
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I f*cking know
Robert Ricard- Bro ifk that's not you
Victim- Why you taking pics of pus and sending me them and saying that's me
by Judlig Wan Beetjoven February 08, 2018
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