A Japanese (or really any type of East Asian/Pacific Islander) person who is kind of a puss. Usu. referred to men who would bring not much honor to their family because they are such a puss.
Kenji is such a riceball. He screams like a little girl, and he dropped wrestling for swing dance class because he's scared of getting beat. His old man probably isn't too pleased.
by Spottydog June 05, 2011