From jisho.org[1]: 面倒くさい - bother(some) to do; tiresome Also the word 面倒 translates to trouble, difficulty; care; attention;, so that with +くさい would make it t

From jisho.org[1]: 面倒くさい - bother(some) to do; tiresome Also the word 面倒 translates to trouble, difficulty; care; attention;, so that with +くさい would make it troublesome. I've not heard it being used for messy, unless perhaps you mean messy as in a messy situation (rather than say, a messy room). [1]: http://jisho.org/words?jap=%E9%9D%A2%E5%80%92%E3%81%8F%E3%81%95%E3%81%84&eng=&dict=edict http://jisho.org/words?jap=%E9%9D%A2%E5%80%92%E3%81%8F%E3%81...