Definition
A "high muckamuck" is an informal and often humorous term for an important or influential person, especially one who is self-important. It's similar to "bigwig" or "high-up," but often carries a slightly negative connotation, suggesting the person is overly impressed with their own status. Think of it as the person in charge who loves to remind everyone they're in charge. It's a playful way to describe someone with perceived power.