ochlagogue
A manipulator of a mob who holds sway by use of inflammatory rhetoric, casting opprobrium, and by appeal to the lowest common denominator generally; an extreme and wholly unscrupulous demagogue; one who practises ochlagogy.
rare
Ochlagogue! What a name for an Irish horse! EVOK.
Where it comes from
From Ancient Greek ὀχλαγωγός (okhlagōgós), from ὄχλος (ókhlos, “mob”) + ἀγωγός (agōgós, “leading, guiding”).
Adapted from the Wiktionary entry ochlagogue (CC BY-SA 4.0).