A Kamiar is an ancient myth: In legends of ancient Greece, Kamiar was terrible creature from Persia who inflicted pain and suffering on towns he didn't like. Some refer to it as the first acts of terrorism. You can also refer to people who are terrorists as "Kamiars" (instead of their name).
"If Kamiar stay's in our school, I will be freaked out!" -referring to someone who could be suggested to be a terrorist