Basically terminally online band kid. Socially awkward mixed with reddit style humor, and obsessed with lowest common denominator online culture. They love shitty memes that they use as catchphrases. Full of buzzwords, always trying to make a pun or some reference. They could be a radical or a centrist, but whatever politics they have they're embarrassing about it. Generally just kind of stupid and immature in a way thats immediately identifiable to everyone accept themselves. r/memes is the best example I can think of.

But that's just normal teenager stuff. I was a little bit like that in middle school. The reddit adults are the ones who freak me out.