Baby trollwank at sortinghat_rp.
Okay, so, http://www.livejournal.com/community/sortinghat_rp is a Harry Potter crossover RPG that I sometimes lurk at in order to make fun of it.

A troll (http://www.livejournal.com/users/pureblood_atobe/) makes a journal almost identical in terms of userinfo, ect., to one of the player character journals (http://www.livejournal.com/users/purebloodatobe/) and, I guess, attempts to impersonate that player/character. The troll then proceeds to spam various other journals with rap lyrics and pleas for sex.

When asked who s/h/it is by an irritated player, the oh-so-creative troll replies, "Butt Man." and is banninated.

ETA: The (I'm assuming) player of the trolled character comments on the situation.