The Urban Dictionary describes "hipsters" as people that try too hard to be different (and genuinely do think that they're being different), by rejecting anything they deem to be too popular.
Ironically, so many other people also try too hard to be different that they all wind up being the exact same, so hipsters aren't actually different at all, they are just people that are snobbier and more annoying about their taste in "alternative" things, which are all popular now thanks to the other hipsters.
Hipsters pride themselves on liking things that no one else likes, and normally only really like them because they think no one else likes them and that they are being unique. This is being delusional because all the other hipsters also like the same things.
