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.
Some extremely gay shit like putting a ":)" at the end of every text. Billy shit occurs when someone does somethingsuper lame that would upset any normal man that hears about it.
Girl: "Billy, don't text me back unless you're on the way to my house to have sex with me."
Billy: "Girl, dont text me back unless you're on the way to my house to have sex with me:)"
Girl: "Thats some Billy shit. Don't text me."