Also called grapevine telegraph.a person-to-person method of spreading rumors, gossip, information, etc., by informal or unofficial conversation, letter writing, or the like.
n. an informal communications network. : I heard on the grapevine that Sam is moving to the east.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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