Better than the average human being. A Fratboy is intelligent, social, athletic and successful. GDI's try to act like they are above fraternities but in reality they are still stuck in high school and dress like middle schoolers and guidos. Fratboys get girls, money, and jobs after college. GDI's get their right hand, a job under a fratboy, and their parents basement for a future home. Minorities also tend to hate fratboys because either A) They can't afford to join a fraternity. B) Even if they could they wouldn't get in.
Guy 1:Dude she totally wants you dick!
Guy 2:No shit, I'm a fucking fratboy and she's a total sorostitue.