Found 2 items, similar to blabbermouth.
English → English (WordNet) Definition: blabbermouth blabbermouth n : someone who gossips indiscreetly [syn: tattletale, tattler, taleteller, talebearer, telltale]
English → English (gcide) Definition: blabbermouth blabbermouth \blabbermouth\ n. someone who gossips indiscreetly. Syn: blabber, tattletale, taleteller, talebearer, telltale. [WordNet 1.5]