What is the origin of the idiom "laughing stock" and when to use it?

The idiom "laughing stock" has its roots in Middle English and was originally used in the form "laughingstocke." It combines the words "laughing" and "stock." In this context, "stock" referred to a wooden post or trunk, often used for various purposes. This expression is used to describe someone or something that is widely ridiculed, made fun of, or regarded with amusement and contempt by others. It suggests that the person or thing has become the subject of laughter and derision.