As an exercise in thinking about a language, I like trying to translate something a bit silly, that I can't just look up. Even if the result is bad, it tends to lead in interesting directions as I try to move beyond rote memorisation and end up discovering some new aspect of the language.
Today's target was "beanis".
What I came up with for Japanese was お{荏々|じんじん}. As far as I can tell, this is not in dictionaries, but sounds like an existing word, おちんちん, with extra voicing on the leading consonant, and has "bean" in it, though jisho.org gives some other meanings to the kanji.
I have no idea whether this works or is (more likely) just gaijin nonsense, but I can't think of anywhere else I could possibly post this.
