let the cat out of the bag

💡 Meaning

To accidentally reveal a secret or surprise.

비밀이나 깜짝 놀랄 소식을 실수로 먼저 말해버리는 거예요.

🧠 Memory Hook

In old market days, a sneaky seller might hide a cheap cat in a bag instead of the pig you paid for. If someone opened the bag early, the surprise and the trick were both ruined.