very important person, VIP, high-up, dignitary, panjandrum, high muckamuck(noun)

an important or influential (and often overbearing) person

very important person(Noun)

A person who is accorded special privileges due to his or her status or importance. Examples include celebrities, heads of state, high rollers, politicians, high-level corporate officers, wealthy individuals, or any other person who receives special treatment for some reason. In some cases, such as tickets to events, VIP may be used in a similar way to premium, and can be purchased by anyone.