Now let's get this straight. Japanese is a complicated language and this kanji [姦] means many, many things in both Chinese and Japanese. Honestly it depends on the context. I also found out that [姦] can mean noisy in a kind of boisterous way. There are different kinds of noisy, there are different kinds of wicked, there are different degrees of rape. They all have terms in English as well as in Japanese and Chinese. It's just that sometimes they are written the same way and pronounced differently, or sometimes there may be more kana at the end of the kanji to change its meaning.