Anger-ist

(n): formerly terrorist. 1.) Loose bands of murderous thugs striving for world domination by indiscriminate bombing/shooting of innocent, unarmed, unassociated victims at social events or other gathering places. 2).) Band of murderous thugs fruitlessly advancing a failing social or political agenda through acts of murder or violence.

"Terrorists" aren't really about terror they're ANGER-ist. That is, they're really a bunch of jerks blowing things up and killing people, just to piss people off. They really should be called 'angerist' - as they create anger and aggression, but are incapable of solving problems or advancing society by peaceful means.