Bull Shit Intolerance

Being figuratively allergic to the incessant lieing of individuals that are obviously making blatant falsehoods.

In other words: Knowing a bullshitter and his or her bullshit when you see it and effectively showing your dislike of said bullshit and or bullshitter.

Guy: I never dated that nasty whore.

Girl: -Sneezes-

Guy: You okay?

Girl: -Laughs- Oh I'm fine, I just suffer from a very serious case of Bull Shit Intolerance.