Westerbros
That's basically it. I saw the word Westeros and misread Westerbros. And then the idea of Game of thrones College AU where the different countries/places/kingdoms are fraternity or sorority names. And the nickname on campus for the Westeros fraternity is Westerbros. Don't know or remember enough about the rest of it all to come up with more, but I'm sure it'd be easy to do. Maybe Winterfell is either a student organization that holds all others accountable or its the name of the Student Center? Maybe Valyria is a really posh frat/sorority? Robert Baratheon tried to get Ned Stark to pledge/rush with Westeros but it didn't fit him, now they're alumni pushing their children to join etc...Jaime was a Westeros member, now he's a college sports coach and Brienne is a Masters student who does a sport on the side?