system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What's a "hipster"?
gpt
Suppose you have this friend, Little Johnny.  Little Johnny doesn't really fit in with most of the kids, which makes him really sad and really mad at the same time.  

So, Little Johnny finds this one band, "Sex Bob-omb" that only five kids at school know about, and he sort of likes their music.  The important thing, though, is that Little Johnny finds acceptance in his new group of friends.  

Seeing that he is easily accepted in groups that are small enough, Little Johnny starts looking for other things that only a few people like.  Let's say for instance, there's a soda called PBR that EVERYONE hates because it tastes *absolutely* foul, but it's very, very cheap.  Well, Johnny decides that he likes that soda.  He finds acceptance with the small group of people who also like that soda.

These small groups of people who like specific products or services represent something called "subculture."  

Now, sometimes people like a soda or a band or a style of dress just because they're different.  

Other people, though, like these things, or "subculture" because they don't feel accepted by the other kids.  These people are called "hipsters."

For them, enjoying a band or a soda isn't about the band's music or the soda's taste, it's about keeping the group small, so they can still feel accepted.  That's why when Sex Bob-omb got popular a few years ago, Little Johnny stopped listening to them.  He said they were "too mainstream."

So that's what a true hipster is.  A true hipster only likes something if a very small group of people like it, because he or she feel as though they can only find acceptance in small groups. 

Little does the hipster know that by excluding other kids from THEIR group, they've become the same type of person that they hated to begin with.