Someone who thinks that they are being "special" and "unique" for liking some underground bullshit no one else cares about. And they pointlessly look down on people who don't know anything about indie culture, because that's the only thing they know anything about. They're quick to call the rest of the world conformists when in reality, they are the ones conforming by partaking in a "too cool for mainstream so i am going to reject it by looking and acting like a grungy asshole" way of life only to seem uber-fashionable. They just end up looking like idiots.
1) Hipster: I won't drink at starbucks, it's too corporate.
2)Non-Hipster: I want a Louis Vitton purse because they are cool
Hipster: You're such a conformist, haveing a Louis Vitton purse is so unoriginal. I like my purse I found in the gutter for $4 dollars.
Non-hipster: but it's fugly
Hipster: yah, but no one else has it. It's completely unique.
Non-hipster: that bum over there has something pretty similar though.
Hipster: You're ignorant because you can't see the real beauty in life.
I don't have time for this, I'm gonna go to my cave of an apartment and listen to some indie rock you've probably never heard of....