spill the beans
idiomE

Reveal a secret or disclose confidential information unintentionally
  • 1She accidentally spilled the beans about the surprise party.
  • 2He didn't mean to spill the beans about the new project.
To "spill the beans" means to accidentally tell a secret or share private information that was supposed to be kept quiet. It's like letting something slip out that you weren't supposed to reveal.
Card
Be careful not to spill the beans by thinking before you speak. Take a moment to consider if what you are about to say should be kept private or shared with others.
during a workout session
The Accidental Revelation
Mark
Hey Robert, did you hear about the surprise party for Jake?
Robert
Oh no, I wasn't supposed to know! Who spilled the beans?
Mark
Oops, I guess I just did. Please don't tell anyone else!
Robert
Don't worry, your secret is safe with me.
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Similar to "spill the beans":
  • 1reveal
  • 2divulge
  • 3disclose