Who the *$&% is hipster?
One who possesses tastes, social attitudes, and opinions deemed cool by the cool. (Note: it is no longer recommended that one use the term "cool"; a Hipster would instead say "deck"). The Hipster walks among the masses in daily life but is not a part of them and shuns or reduces to kitsch anything held dear by the mainstream. A Hipster ideally possesses no more than 2% body fat.
/Robert Lanham: The Hipster Handbook/
Hipster: Aged indie kids. Hipsters still maintain the air of snobbery, still shop at salvation army, and still have a completely astonishing array of knowledge when it comes to obscure music, pop-culture non-sequiturs, and political sneers. Absolutely a blast to be friends with, hell to be enemies of, hipsters are the most bi-polar of all the stereotypes when it comes to how they treat you. Can be recognized by books like The Clockwork Orange, Everything Is Illuminated, or obscure philosophy books, by authors akin to Dostoevsky.
/Urban Dictionary/