The horrible, fiery collision of the otaku and otherkin subcultures. I.e., people who believe they are somehow involved with/reincarnated from the souls of anime/video game characters. Japanese pop culture is literally their religion. And no, it's not a joke. They are the ultimate illustration of how utterly batshit insane the Internet has become.
An umbrella term to cover a variety of anime-themed speedcore/hardstyle/gabber acts such as DJ Sharpnel (and many of his other incarnations), Killingscum, Noizu, and possibly Blasterhead, including many others.
High-speed, pitch-shifted, far east pounding bastardrave!
It was also the name of an anime speedcore party where, amongst others, DJ Sharpnel performed.