큰일 나

get into big trouble

→ 큰일
phrase Rare #18,576
get into big trouble An idiomatic expression meaning that something bad or serious will happen, or that someone will be in serious trouble. Often used as a warning; the form 큰일 나요 is polite.
KO: 이 비밀을 말하면 큰일 나.
EN: If you tell this secret, you'll be in big trouble.

경찰이 들으면 큰일 나

If the police hear about this, we're in big trouble.

— RRR: 라이즈 로어 리볼트 (2022)

들키면 큰일 나

If we get caught, we're in big trouble.

— 위키드 (2024)

루트비히 이러다 큰일 나

Ludwig, we're going to be in big trouble if this keeps up.

— 서부 전선 이상 없다 (2022)