Значение слова through the grapevine

Определения слова through the grapevine
- по данным из недостоверных источников; по слухам, по сплетням.
  - Through the grapevine, Bergdorf Goodman got wind of the designs and invited Tony to bring samples of his jewelry to New York in 1994.
  - I get a lot through the grapevine, you know.
  - But news of his interest in Lyme disease had traveled through the grapevine to Lyme patients in southeast Connecticut.