miso;  fermented condiment usu. made from soybeans;  innards (from crabs, shrimps, etc.) resembling miso;  key (main) point;  good part (of something);  weakling
 to rub;  to chafe;  to strike (match);  to lose (e.g. a match);  to forfeit;  to squander one's money (e.g. through gambling, Pachinko, etc.)