A fork of Rural Dictionary
A sex tape that is a reenactment of hentai (or ero-anime/ero-manga in Japanese)
Mark: Recently, me and my anime-obsessed girlfriend, who is a really sweet girl with a perverted heart, have done a 3D hentai. We need someone to rotoscope the tape and it will be carefully locked within the depths of my box of secrets!
Bill: That's pretty sick, man. Reenacting a Japanese adult cartoon would be neat!
Mark: You said it, boss!