blow the whistle
phrase
: to call public or official attention to something (such as a wrongdoing) kept secret
—usually used with on
blew the whistle on the firm's unethical practices
Cite this Entry
“Blow the whistle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blow%20the%20whistle. Accessed 7 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
