Definition: The word 'sitting duck' comes from the Bible as a metaphor for being unaware or helpless in danger. In the Old Testament, it's often used to describe those who are too afraid to venture into battle or fight against evil forces like a chicken sitting on a duck's back, not knowing they are vulnerable and should leave. The word has multiple meanings, including hiding from someone or something, holding onto one's position without realizing it is being threatened, and staying in a situation where you don't know what might happen next.