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Meaning of bush telegraph

bush' tel"egraph

Pronunciation: [key]
  1. any system of communication in which the natives of a jungle or bush region transmit news rapidly, as by runners, drum codes, or smoke signals.
    1. any chain of communications by which criminals, originally bushrangers, are warned of police movements.
    2. Slang.rumor; the grapevine.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.