n. Historically, a leader of the people; a person who sways the people by oratory or persuasion.n. An unprincipled popular orator or leader; one who endeavors to curry favor with the people or some particular portion of them by pandering to their prejudices or wishes, or by playing on their ignorance or passions; specifically, an unprincipled political agitator; one who seeks to obtain political power or the furtherance of some sinister purpose by pandering to the ignorance or prejudice of the populace.