on the grapevine

on the grapevine

Through or via an informal means of communication or information, especially gossip. There is always some absurd rumor or piece of misinformation on the grapevine at work, but I try to just tune most of that out. I heard on the grapevine that John is planning to propose to Samantha next week!
See also: grapevine, on

on/through the ˈgrapevine

by talking in an informal way to other people: I heard on the grapevine that you’re leaving.
See also: grapevine, on, through
References in periodicals archive ?
Whether it's labeled marketing hype or long overdue recognition, black books are in the spotlight, and BIBR is putting words on the grapevine about incredible new biographies like Valerie Boyd's Wrapped in Rainbows: The Life of Zora Neale Hurston, and important new works by Michael Eric Dyson, John McWhorter and Manning Marable among other important thinkers, as well as a wide array of design books that have helped establish what can loosely be described as "black style.
Results showed that 43 percent of employees surveyed always or often relied on the grapevine for information.
You shut yourself off from vital information sources found on the grapevine, people who know about new company trends, changes, job openings and other opportunities.
Antelope Valley officials said that engineering challenges on the Grapevine route would drive up projected costs.
Now, several managers have told us that they can't count on the grapevine to carry important news.
Under the terms of the contract, Clear Blue Media will secure advertising on the Grapevine Terminals, located in major airports, convention centers, hotels and other public locations.