let the cat out of the bag
/ˌlet ðə ˌkæt aʊt əv ðə ˈbæɡ/
to reveal a secret accidentally
“She let the cat out of the bag about the surprise party.”
Origin: Possibly from fraudulent market practice of substituting cat for piglet in bag
/ˌlet ðə ˌkæt aʊt əv ðə ˈbæɡ/
to reveal a secret accidentally
“She let the cat out of the bag about the surprise party.”
Origin: Possibly from fraudulent market practice of substituting cat for piglet in bag