What does the idiom “Hear something on the grapevine” mean?
To hear a rumour or unconfirmed story, especially gossip.
This phrase comes originally from an American Civil War expression, when news was said to be passed ‘by grapevine telegraph’.
How to use the idiom?
I heard on the grapevine that Sarah and Markus are getting a divorce.
“How do you know the company is going bust?”
“I heard it on the grapevine.”