people who think they are original and unique for having "innovative" opinions, when really the only opinion they have is the opposite of whatever is considered "mainstream" at the time. these people think they are above everyone else for being so "different," and thinking they are the shit for not conforming to society when really their whole life revolves around being different JUST to be different so people think they are cool. Being a hipster basically means THINKING that you can fool people into thinking that you have it all figured out by using reverse-psychology, when really you want to be accepted just as much as anyone else...Hipsters just try harder.
hipsters: "what! you're not allowed to like (insert underground band name here)! you're too mainstream! you listen to the.....RADIO"
average person: "oh..um.... i just like their music...because it's good....im sorry?"