What do you mean by swearing?

893 means YAKUZA, Yamaguchi group. Because the pronunciation of 893 in Japanese is similar to YAKUZA, it means Yamaguchi group.

Yamaguchi group is the largest designated violent group in Japan, and it is also one of the oldest and largest gangster organizations in East Asia and even the world. Founded by Haruki Yamaguchi in Kobe City on 19 15, and headquartered in Kobe, Japan. Its member backgrounds can be divided into three categories: Bo Tu Department, Japanese House Department and Fool Company. The organization is mainly active in western and southern Japan, and its power distribution covers four islands of Japan. In addition to Japan, the Yamaguchi group has activities in Western Europe, North America, Southeast Asia and other places. Sumitomo Society and Inagawa Society are the three major violent groups in Japan.