Member of an extremist republican club of the French Revolution founded in Versailles 1789. Helped by Danton’s speeches, they proclaimed the French republic, had the king executed, and overthrew the moderate Girondins 1792–93. Through the Committee of Public Safety, they began the Reign of Terror, led by Robespierre. After his execution in 1794, the club was abandoned and the name ‘Jacobin’ passed into general use for any left-wing extremist.
Jacobin Jim will have your head if you don't acknowledge the Sumpreme Being.