Definition & Meaning of "search me"

What is the origin of the idiom "search me" and when to use it?

The idiom "search me" originated in the United States in the late 19th century. It likely comes from the idea of searching a person's pockets or belongings for an answer, as if the answer were hidden within them. It is often used when someone wants to express their lack of knowledge or understanding about a particular topic or question.