ochlagogue

Etymology
From, from +.

Noun

 * 1)  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.

Related terms

 * demagogue
 * ochlagogy
 * ochlocrat
 * pedagogue