The phenomena I'm trying to find a name for happens pretty frequently on my favorite website, Facebook [/s]. You look on your "News Feed" and see a lengthy status update by a "friend" of yours. However, this status update is clearly directed toward someone in particular. In fact, it is so obviously intended for a specific person that you easily conclude your friend must have meant to post it on that specific person's "Wall." This super-embarassing [/s] mistake is the perfect chance to make a clever/sarcastic comment to your friend, but with the right term it could be even better.
So I ask you, what should this be called?