B2idiominformalnatureIELTS-friendly
let the cat out of the bag
USUK
to tell a secret by mistake
Always by accident. Compare 'spill the beans', which can also be on purpose.
In context
We planned a surprise party, but my little brother let the cat out of the bag.
Don't let the cat out of the bag; nobody knows about the wedding yet.
More idioms about nature
- a big fish in a small pondan important person, but only in a small group or place
- a bird's-eye viewa view of something from high above
- a breath of fresh airsomeone or something new and different that makes a situation more pleasant
- a dark horsea person with hidden talents, or a competitor nobody expected to do well
- a drop in the oceana very small amount compared with what is needed