It's the opposite of a nerd. Peoples that concern more about how they look like or what other people think about them. They usually run after fame and recognition, even if it is not a permanent status.
gym rats, big brother participants, 50 cent, liferuler
People (usually man) that are always in a gym. They workout more than any person and more than the healthy limit. They are always comparing their arm sizes. They usually talk how the other are hot and thinks like that, but they are not (at least they say it) homosexuals. A gym rat will always be a liferuler, though a liferuler is not necessarily gym rats
gym rats, liferulers, academy instructors, football players, bullys