BLABBERMOUTH
Meaning of BLABBERMOUTH in English
/ ˈblæbəmaʊθ; NAmE -bərm-/ noun
( informal , disapproving ) a person who tells secrets because they talk too much
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005