Kids who think that they are really cool and dress in expensive clothes. They like to party and spend their parents money in front of regular kids. They think they are the shit.
"Look, those dopekids are wearing Lacost."
"Whoa, they're dope!"
Taking a dump. Some people say "dropping the Cosby kids off in the pool". Since the Cosby's are black (brown), and so is shit, it makes perfect sense. The pool represents the toilet.
Be right back, I'm gonna go drop the Cosby kids off at the pool.