<P> To hear something through the grapevine is to learn of something informally and unofficially by means of gossip or rumor . </P> <P> The usual implication is that the information was passed person to person by word of mouth, perhaps in a confidential manner among friends or colleagues . It can also imply an overheard conversation or anonymous sources of information . For instance "I heard through the grapevine that Brad was getting fired ." </P>

Where did heard it through the grapevine come from