Barker (occupation)
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A barker is a person who attempts to attract patrons to entertainment events, such as a circus or funfair, by exhorting passing public, describing attractions of show and emphasizing variety, novelty, beauty, or some other feature believed to incite listeners to attend entertainment. A barker may conduct a brief free show, introducing performers and describing acts to be given at the feature performance. A barker is also a southern term for a prostitute in the UK.