Robbery. "Shinogi" is the same meaning at San-ya in Tokyo. Robbers aim at labourers who have a good round sum after a tour of duty. They also aim at old or sick persons intentionally and commit robbery. It is never forgivable for all, so once the robber is found, he will understand how all burn with anger through his own body. Incidentally, the original meaning of "maguro" is "a tuna fish".