The term 'one who brings bad luck' can be summarized as a JONAH, which is a five-letter word. In the Bible, JONAH was a prophet who was sent by God to warn the people of Nineveh of their impending destruction. However, JONAH disobeyed God and tried to flee from his mission. As a result, he was swallowed by a giant fish and spent three days in its belly. After being released, JONAH finally obeyed God and warned the people of Nineveh, but they still suffered a great deal of misfortune. Thus, the term 'JONAH' has come to represent someone who brings bad luck.