<P> "Break a leg" is an idiom in theatre used to wish a performer "good luck" in an ironic way . Well - wishers typically say "Break a leg" to actors and musicians before they go on stage to perform . The origin of the phrase remains obscure . </P> <P> The expression reflects a theatrical superstition in which wishing a person "good luck" is considered bad luck . The expression is sometimes used outside the theatre as superstitions and customs travel through other professions and then into common use . Among professional dancers, the traditional saying is not "break a leg," but "merde". </P>

Where did the quote break a leg come from
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