a perverted cartoon which depicts sex or sexual situations. it is a wrong and imorale thing it shows innacurate representations of people and things. and finally before you give a thumbs down to this ask yourself, isnt that what it really is.
1. Any and all animation displaying one or more sexual body parts drawn by Japanese
2. The word for "pervert" in Japanese
3. What you find when you type in "hentai" in a search engine.
4. Any fan-fiction with rape, sex, et al. in it
I jizzed a lot to that bunny hentai with her tail up.
But the best hentai is the kind you draw yourself.
Anime pictures and films of naked women and naked women engaging in explicit hardcore sex in basically every orifice. What the Wapanese and the otaku have a fetish for because they can't score with a real life woman.