let the cat out of the bag

Meaning

1. to tell a secret carelessly or by mistake

   I wanted it to be a surprise, but my sister let the cat out of the bag.

In the movies · 1

• Did someone let the cat out of the bag?Shrek 22004

From the same entry

• be the cat's whiskers
• like a cat on hot bricks
• like a cat that's got the cream
• cat got your tongue
• look like the cat brought in
• not have a cat in hell's chance
• play cat and mouse with
• put the cat among the pigeons
• when the cat's away the mice will play
• curiosity killed the cat
• like herding cats
• be raining cats and dogs