Word
bigmouth
/ˈbiɡmauθ/
noun
多嘴的人；大嘴巴
a person who talks too much or indiscreetly
大嘴鱼（尤指大口黑鲈）；多嘴多舌的人
In use
My colleague is a real bigmouth; she told everyone about our surprise party.
Don't be such a bigmouth when you hear the news, or you'll ruin the surprise.
Everyone avoids telling him secrets because he's a bigmouth.
Learner notes
Grammar Note
常含贬义，指说话多或泄露秘密的人。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.