"with one (hand|arm) (tied|) behind {one's} back"의 정의 및 의미

What is the origin of the idiom "with one hand behind one's back" and when to use it?

The origin of the idiom "with one hand behind one's back" is unclear, as it is an idiomatic expression that has been in use for an extended period. The phrase employs a metaphorical concept to convey the idea of accomplishing something effortlessly or with a significant advantage. It is often used to emphasize someone's superior abilities or expertise in a particular field.