1 definition by Freddy P.

Top Definition
IBF
Initial Bullshit Factor -IBF also known as IBSF.

The Initial Bullshit Factor or IBF is the thing you have to take into consideration whenever someone irreliable, or someone with a history of lying tells you something.
Guy 1- So Joey was telling me about how he had a massive orgy with the ENTIRE cheerleading squad. And immediately I took into consideration his IBF. And so I just told him SFW dude. Your an AWFUL liar. Later I found out he was telling the truth, but how was I suppose to know he lies about EVERYTHING!!
by Freddy P. June 11, 2008

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