dire ses quatre vérités

動詞

くだけた表現

(口語) 誰かに自分の考えを伝える; 誰かに真実を告げる、誰かにいくつかの選び抜かれた言葉を言う

英語の意味

(informal) to give someone a piece of one's mind; to tell (someone) some home truths, to say a few choice words to [+ à (someone)]

嘘にうんざりしたとき、ピエールは同僚に対して遠慮なく本音をぶちまけ、彼に自分の誤りを理解させようとした。

When Pierre had had enough of the lies, he never hesitated to give his colleague a piece of his mind to make him understand his mistake.