gossiper

a person who habitually reveals personal or sensational facts about others the exact nature of the relationship between the two coworkers was a topic that kept the office gossipers too busy to do any work Synonyms circulator, gossip, gossipmonger, newsmonger, quidnunc, talebearer, tale-teller, telltale, yentaRelated Words betrayer, blabbermouth, informant, informer, snitcher, squealer, stool pigeon, tattler, tattletale; libeler, scandalmonger