I have encountered scores of people of this breed in my lifetime, and have been astounded to realise they have never been catagorized, which is something we humans like to do, stick people in boxes.
These people typically have a lower intellect and intelligence than your average person, the tell-tale signs include always wearing rather thick glasses and a ever so slightly offended look on their face.
They tilt their head back and peer at you down their nose when talking to you, raising their upper lip into a sneer that exposes the teeth.
Often found boasting about the great achievements they've come to accomplish in their life, the unfortunate engorged grandeur only suffices to expose the pitiful backwards living-at-home-til-25 lifestyle they lead.
Guy 1 - Oh, that's cool, what is it?
Flob - It goes dead fast! It's red.
Guy 1 - Huh?
Guy 2 - It's a moped, and his mother bought it for him.
Flob - I can play drums too!
Guy 2 - Great, did you get them for Christmas?
Flbo - YEAH! I mean, no! I'M DEAD GOOD ON THEM, COME TO MY HOUSE AND BE MY FRIEND!
Guy 1 and 2 - Later flob.
"My flob is really bad, I drew it myself."
"I feel like flobbing."
"I think we should just flob."