it's written by some fairly clever 15-year-olds. of this i'm quite sure. the writers recently discovered that when their parents aren't around, they can have fun with swear words, sex, and making fun of nerds.
i'll get back to you about it when i've seen maybe a full episode or two.
EDIT: now i've watched a full episode, and i can also say that these pubescent monsters also think acting like a complete douchebag is pretty funny.