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.
"I put all the DJ Sharpnel albums under 'Otakuspeedvibe' on my mp3 player for easy access."
"Otakuspeedvibe: FarEast Basterdrave"