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British Dictionary definitions for open mike

open mike

noun
    1. a session in a pub or club where members of the public are invited to perform comedy or to sing
    2. (as modifier)an open-mike slot for young hopefuls
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012