If you dreamed of Killing a Black Snake with a Knife in a dream: A legal problem may upset you, a very favorable day awaits you to take care of your hobbies. To kill a black snake with a knife in a dream is interpreted as the success of the person who sees the dream in business life, and that he will do his job without fear of anyone as a result of his efforts so far.
It states that the dreamer will become stronger in business life, and that he will act without fear of anything as a result of his struggles so far.