big mouth
嘴巴大
口语·形容爱泄密或话多的人
英文释义
a person who talks too much or reveals information that should be kept private
例句
Don't tell him any secrets; he's a big mouth and will tell everyone.
典故来源
源自20世纪美国俚语，'mouth'指嘴巴，'big mouth'比喻话多且守不住秘密的人。