big man on campus

Big man on campus is a cliche which has both literal and figurative meanings and uses. Literally, big man on campus is referring to an important male (or female figuratively) on a college campus as someone who is powerful or popular and has influence on others. Figuratively, the cliche is used for anyone who has this kind of power or influence in a place or situation such as in the workplace. The phrase is often used in a derogative or sarcastic manner.