Heckler

A heckler is a person who shouts an uninvited comment, usually disparaging, at a performance or event, or interrupting set-piece speeches, for example at a political meeting. A heckler is almost always regarded as unwelcome by the person with justifiable claim to be the centre of attention and the audience may also find the interruption an unwanted distraction, however they may sometimes find the interjection amusing or apposite.

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