半はん畳じょうを入いれる

expression, ichidan verb

interrupt with a jeer; heckle

Used when someone cuts into a speech, performance, or conversation with a mocking or critical remark. The expression originates from the practice of throwing a half-sized tatami mat (半畳) onto a stage to show disapproval.

• 演えん説ぜつ中ちゅうに野や次じ馬うまが半はん畳じょうを入いれた。

  A heckler interrupted the speech with a jeer.