Hentai-parody is a tag used in porn videos, referring to a parody of hentai content. Hentai is a term derived from Japanese "hentai sekushuaru" which means perverse sexuality or pornography, and it often refers to adult anime or manga with exaggerated and fantastical themes. A parody of this would be a video that imitates the style, theme, or storyline of a particular hentai work but with its own unique twist, usually involving humor or satire. This tag signifies that the content is inspired by hentai, but may not necessarily be explicit or graphic in nature like authentic hentai works.