uproarer
/ˈʌprɔrər/Definitions
1. noun
One who or that which provokes or incites disturbance or tumult; a disturber of the peace.
“The politician’s inflammatory speech was met with a fierce uproarer, sparking outrage across the nation.”
2. verb
To stir up or excite to violent or noisy disturbance; to provoke to tumult or riot.
“The crowd began to uproar after the news of the team’s win was announced.”