I have no idea were this idea come from, haha.

Anyway, my idea is to basically rp high school, but from a humurous standpoint. You pick an extreme sterotype (Jock, Nerd, Prep, Goth, Ect.) and you basically make fun if it by being them. Also, the way you write should reflect who you are. Ex:

If ur like, a preppy girl, you should like, talking like this, and tottally use some chat speak, cuz that would just be soooo lol!

A nerd should use an extensive vocabulary, and make few spelling and grammer mistakes.

A jock can misspel words and not use very good language coz there stereotypicly stupid.

Of course, there are other stereotypes you can be, but pick one you could do well ^w^