Определение и Значение "[be] wild about {sb/sth}"

What is the origin of the idiom "be wild about somebody or something" and when to use it?

The origin of this idiom is not precisely documented, but it likely emerged from what the "wild" conveys, a sense of intense and unrestrained emotion. This idiom is used to express a deep affection, enthusiasm, or fascination for a particular person or thing. It signifies a strong and intense liking or attachment.