Insulting famous wolf-packs in whisper with a friend. I mean seriously there was a female that had a ridiculous role-playing post about taking a dump and becoming grass that doe would eat. We were both dying with laughter at it. XDDD
And then there is 1x1 role-play, and forum role-play where you don't have any post limitations or have to be "literate" or "realistic" in the post at all. It's pretty much whatever the heck ya wanna post. My favorite kind to role-play. <3