A crossbreed between a douchebag and a hipster. A bagster would like the Nickleback, like a douchebag would, and Steve Aoki, like a hipster would. They would also like Kanye West, like both a douchebag and a hipster would. It's okay if you say bagster and someone thinks you said bastard. They're usually interchangeable.
That guy is totally a bagster. He looks just like he got back from a Kanye West concert.
Young, rich kids (and twenty-somethings) who listen to all the new, hip music you've never heard of and dress anachronistically because it's "ironic". They typically practice a cultured, bored look; may or may not be bisexual; have an art school education; are politically liberal and ridiculously androgynous.
Similar to hipsters but worse.
I think it's funny that when rich kids rebel the best they can manage is the bratster thing, there's fucking nothing scary about those kids.
Fucking bratsters have taken over my favorite coffee shop, the little fuckers talk a lot but they never say anything.