Gossip is idle talk or rumor, especially about the personal or private affairs of others. It forms one of the oldest and most common means of sharing (unproven) facts and views, but also has a reputation for the introduction of errors and other variations into the information thus transmitted. The term also carries implications that the news so transmitted (usually) has a personal or trivial nature, as opposed to normal conversation.
Over the last decade, gossip has come to the attention of academia as a fruitful avenue of study, particularly in light of its relationship to both overt and implicit power structures.
From - Wikipedia
