N-COUNT
A rabble-rouser is a speaker who can persuade a group of people to behave violently or aggressively, often for the speaker's own political advantage. 煽动者; 蛊惑者
[表不满]
He says what he thinks and he's very direct and that surprises a lot of people because they think of him as some kind of a rabble-rouser, which he can be.