human megaphone

human megaphone

n
the technique of using a crowd of people to repeat a speaker's words in unison
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
These included the mumiriri, "human megaphones" who use their voices to broadcast the words prophets filled with the Holy Spirit whisper; the vaimbi, a group of members chosen by the Holy Spirit to offer a kind of choral commentary to the events and developments of the service; and the elders placed in charge of guiding the many people, both members and nonmembers, seeking help with spiritual afflictions.
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