A hipster who claims to be different and reject the mainstream but they do so by copying the style of other hipsters and therefore contradicting their own philosophy of being different
"Hipster": check out my new fedora it's so not mainstream at all
Person: what are you talking about I've seen atleast 3 other hipsters whetting the same fedora today. You're such a polyhipster!
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.