These are for advanced Korean learners: some useful Korean phrases that are commonly used.

Phrases

뒷북치지마 - Thanks for the history lesson ( Informal casual )

잘났어 정말 - You're something else ( Informal casual )

필름이 끊겼어 - I blacked out ( Informal casual )

쌤통이다 - He deserves it ( Informal casual )

낚였어 - You got me ( Informal casual )