When to use to sober up in Korean
Korean: 깨다[ kkae-da ]

When to use it
In this meaning, 깨다 means to become less drunk after drinking alcohol. You use it when your head and body feel clearer again. In everyday Korean, people often say that the alcohol has worn off or simply say they have sobered up (깨다).
Example sentences
아직 술이 안 깼어요.
I still have not sobered up.
찬물을 마시면 조금 깨요.
If I drink cold water, I sober up a little.
바람을 쐬니까 금방 깼어요.
I sobered up quickly after getting some fresh air.
집에 가기 전에 술 좀 깨고 가요.
Sober up a little before you go home.
그는 커피를 마시고 술이 깼어요.
He drank coffee and sobered up.
택시에서 내린 후에야 좀 깼어요.
I only sobered up a little after getting out of the taxi.