OK, last manga related post, I swear.

While reading Megatokyo, I couldn't help but notice all the references to "cosplay". Some google-fu later, and I find that the obvious definition is the correct one: Costume Play of Anime/Manga/Video Game characters. Only it's (apparently) mostly girls doing this. Hot thin young girls. Did I mention they were hot?

Damn those Japanese and their superior technology!