(n.) One who governs by terrorism or intimidation; specifically, an agent or partisan of the revolutionary tribunal during the Reign of Terror in France.

Bolshevik Bolshevist Bolshie Carbonarist Carbonaro Castroist Castroite Charley Communist Cong Fenian Guevarist Jacobin Leninist Mafioso Maoist Marxist Mau-Mau Puritan Red Red Republican Roundhead Sinn Feiner Trotskyist Trotskyite VC Vietcong Yankee Yankee Doodle Young Turk alarmist anarch anarchist annihilator arsonist assassin beast beldam berserk berserker biblioclast bomber bonnet rouge brute burner criminal criminal syndicalist demolisher demon desperado destroyer devil dragon dynamitard dynamiter exterminator felon fiend fire-eater firebrand fury goon gorilla gunman gunsel hardnose hell-raiser hellcat hellhound hellion holy terror hood hoodlum hothead hotspur hun iconoclast idol breaker idoloclast incendiary insurgent killer mad dog madcap monster mugger nihilist radical rapist rebel red revolutionary revolutionary junta revolutioner revolutionist revolutionizer ruiner sans-culotte sans-culottist savage scaremonger she-wolf spitfire subversive syndicalist termagant terror thug tiger tigress tough tough guy ugly customer vandal violent virago vixen wild beast witch wolf wrecker