1) teenagers who write essays in text talk, drink, smoke pot, and fuck around. Members of Generation Nothing don't seem to have any hopes for the future or any intentions of bettering themselves or the world.
2) The "lights-on-nobody-home" dead eyed stare of someone with nothing to say. They tend to follow celebrity culture and shun all other ideas.
Members of generation nothing have nothing to say for themselves, they don't think for themselves, and aspire to be a vacant minded nobody.
Member of Generation Nothing "you going out tonight?"
Other person "No"
Member of Generation Nothing "why not?"
Other person "we've got a test tomorrow, aren't you going to study?"
Member of Generation Nothing "Uh, no, I have a life- Loser"