Anyone who "twitters".
This type of
individual firmly believes that their mundane thoughts are actually
interesting or relevant to those they twitter to. This
person wastes time telling others how they are wasting time.
Bill: "Dude, I just got a twitter from Hank telling me he's scoping out some
hot women at a club in Reno."
Ted: "He's such a twitter-twat! He'd rather take the time to tell you about those
hot women than actually try to hook up with them? Wait... You have a twitter account? You're a twitter-twat, too!
Fuck, I need some new friends...!"