Définition et Signification de "rich for {one's} blood"

What is the origin of the idiom "rich for one's blood" and when to use it?

The origin of the idiom "rich for one's blood" is not entirely clear, but it likely originated in the United States in the early 20th century. This phrase is used to describe something that is too much or too intense for a person's taste, preference, or capacity to handle.