김칫국부터 마시지 마세요 · 김칫국부터 마셨네요
to count one's chickens before they hatch, to get ahead of oneself (lit. to drink the kimchi broth first)
Example
아직 결과도 안 나왔는데 김칫국부터 마시지 마세요.
The results aren't even out yet, so don't count your chickens before they hatch.
Word parts
From the proverb 떡 줄 사람은 생각도 않는데 김칫국부터 마신다: drinking kimchi broth to wash down rice cake before anyone has even offered you the rice cake.
Good to know
Matches English 'Don't count your chickens before they hatch.' Casual, usually a warning. Pronounced [김치꾹뿌터 마시다].