ochlagogy

noun1

1. •
   (rare) Manipulation of a mob by use of inflammatory rhetoric, casting opprobrium, and by appeal to the lowest common denominator generally; extreme and wholly unscrupulous demagogy; the practice of an ochlagogue.

   • One can imagine what Epicurus would have thought of the ochlagogy of Herodes Atticus and his contemporaries, and the noisy demonstrations which it evoked. — 1962