I do not not exactly by what you mean by dirty anime, but I will try my best in answering your question. For really eechi and percerted anime, try this: Kanokon, KissxSis, School Days.
For really messed up Anime, try: School Days (really messed up), Wlecome to the N.H.K. (Not that messed up).
For a really gory, sad but romantic anime, try: Elfen Lied
"Kaicho WA Maid-sama!"
Inuyasha one of the best animes I have seen or are you looking for a different anime?
Rosario+Vampire Gakkou no Kaidan or Ghost Stories(in english) Pretear
Nightwalker or Vampire Knight, depends what your looking for, there are a few if you have a good mosey around.
Osamu Tezuka
Hentai
Most animes in Japan can be found in American. However, some may not be dubbed in english. Luckily, people can translate and put subtitles on the animes to help others enjoy good animes. =]
Ginga Densetsu Weed
Bleach (the most) and Naruto Shippuden (some).
depending on the anime and depending on the age of the kid. some animes aren't made from children, just because it's cartoon/anime dooesn't mean it's all for kids. there are many animes such as full moon wo sagashite, shugo chara and prince of tennis which is fine for children. they were made to target a younger age group.
There are many different animes with yanderes characters. Some of the famous ones include Hikurishi, Elfen Lied, and Higurashi no Nuko. You can try these out and see if they captivate you.
The following list contains good steampunk animes Simoun, Howl's Moving Castle, Steamboy and Samurai 7.
Hayate the Combat Butler , Black Butler ,
Inuyasha (Kikyou and Inuyasha kiss)
well ima big otaku and ive been searching for animes just like that
In some episodes of DBZ Gohan goes to college, if that is one.
"Kaicho WA Maid-sama!"