起哄 (qǐ hòng): Gather together to stir up trouble (Verb) — Meaning & Stroke Order

Don't join in their jeering; it will only make the situation worse.

Why does someone always stir up trouble whenever we discuss serious topics?

In the courtroom, any attempt to cause a disturbance will be regarded as contempt of court.

During the meeting, someone deliberately stirred up trouble in an attempt to disrupt the discussion.