blow the whistle on

US /bloʊ ðə ˈhwɪs.əl ɑn/
UK /bloʊ ðə ˈhwɪs.əl ɑn/
"blow the whistle on" picture
1.

폭로하다, 고발하다, 내부 고발하다

to inform on someone or something, especially to expose wrongdoing

:
An employee decided to blow the whistle on the company's illegal practices.
한 직원이 회사의 불법 행위를 폭로하기로 결정했다.
If you see any corruption, you should blow the whistle on it.
부패를 보면 고발해야 한다.