let the cat out of the bag
idiomE

Reveal a secret or disclose information unintentionally
  • 1She accidentally let the cat out of the bag about the surprise party.
  • 2He let the cat out of the bag when he mentioned the new project.
To "let the cat out of the bag" means to accidentally tell a secret or share information that was supposed to be kept hidden. It's like when you accidentally reveal a surprise party before it happens. It's important to be careful with what you say to avoid letting the cat out of the bag.
Card
Be mindful of your body language when trying to keep a secret. Sometimes, even without saying a word, your expressions or actions can unintentionally let the cat out of the bag.
during a job interview
The Interview Mishap
Deborah
I was so nervous, I accidentally let the cat out of the bag about the company's new project.
Robert
Oh no, I hope it wasn't confidential information!
Deborah
It was, but I managed to steer the conversation away quickly.
Robert
Good thinking, just be more careful next time.
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Similar to "let the cat out of the bag":
  • 1spill the beans
  • 2divulge