('US, somewhat old-fashioned') The quarterback of the football team is a real 'big man on campus'. [=he is important and well-known]
She prefers living 'off campus'. [=she prefers not living in the dormitories/housing provided by the school]
How do you like living 'on campus'? [=in the dormitories/housing provided by the school]
(..) We got over members. ' Tell me about the strategy you're using. ' Okay. For instance, we wanted Baylor, in Texas, but Baylor already had a social network on campus. So instead of going right after them, we made a list of every school within miles' You put The Facebook on those campuses first. (..)2010 The Social Network
(..) Well, we already went through this on the' Never mind. Mr. Saverin, what happened after the initial launch? It exploded. Everybody on campus was using it. "Facebook me" was a common expression after two weeks. And Mark? And Mark was the biggest thing on a campus that included Nobel laureates, (..)2010 The Social Network