The idiom "blow the whistle" means to expose or report someone's wrongdoing or illegal activity to the authorities or the public. It is often used to describe a situation where someone reveals information that was previously kept secret or hidden.
For example, if an employee at a company discovers that their boss is embezzling money, they might "blow the whistle" by reporting the illegal activity to the police or a regulatory agency. Similarly, if a journalist uncovers evidence of corruption in government, they might "blow the whistle" by publishing an investigative report.
The phrase "blow the whistle" comes from the practice of referees or officials in sports blowing a whistle to stop play and signal a foul or violation. In the same way, someone who "blows the whistle" is stopping illegal or unethical behavior and calling attention to it.
Overall, "blow the whistle" is a powerful idiom that can be used to describe situations where someone takes a stand against wrongdoing and tries to make things right.
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