In S06E10 , "Caged Heat" , Sam takes khe 칼, 나이프 back from Meg. Can 당신 tell me when exactly the 로스트 it? I really need the answer. My mind is blowing.

I think Meg and the other demons she was with just took the 칼, 나이프 from Sam and Dean earlier that episode, when they captured the brothers. I can't remember them losing it 또는 not having it before then.