A derivative of the common phrase "OMG". OM Jihad occurs when something extraordinary happens and causes one to believe that a war is imminent.
Tyler W: You won't believe this, but that geek that was working on our website just stole our idea. No wait, it gets better, now he is skulking around with Sean Parker from Napster.
Cameron W: OM Jihad, we are totally going to sue his ass for everything he's got. Seriously, that kid is fucked.