사냥가는 데 총 안가지고 가는 것 같다 -- I'm on my way to go hunting, but it seems that I didn't bring my gun. This expression is used when you are off to do something, but you have forgotten the thing you need the most to get the job done. (무슨 일을 하러 갈 때 가장 요긴한 물건을 빠뜨리고 간다는 뜻)
