How did the hipster burn his tongue? He sipped his coffee before it was cool...

I don't get hipsters. I means sure, I understand what they are.  You see them everywhere these days dressed in their carefully constructed thrift store style ensembles that probably cost more than any article of clothing I own, drinking coffee in edgy little hole-in-the-wall coffee shops that seem to exist only to serve that particular portion of the population. But I don't get the motivation