labroin
A Labroin is a smug, self-centered guy who thinks he's the king of the hill, but when you get to know him, he's just a regular guy who'll back you up even if he cusses you out for being stupid.
Labroin: 'I'm the best at this game.' Later: 'I let you win because I felt bad.'
Labroin texts you at 2 AM: 'I'm gonna fail this test, but I'm still better than you.'
Labroin helps you cheat on a test, then yells at you for getting caught.