It's an alternate universe Twitter, is what it is.

[A beat. Wait.]

And you have no idea what I just said, do you. [The guy has no idea what a hashtag is, of course he doesn't.] It's a site where you say something about whatever topic you can think of, but the catch is you've got a hundred forty characters to do it in. At least it was a hundred forty last time I checked, I heard they raised the limit.