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!!