noun
Colloquial numerical code for yakuza, derived from a losing hand in a card game (8-9-3). Used as a slang term for the Japanese mafia.
See also: ヤクザ
あの界隈は893の縄張りらしい。
That area seems to be yakuza territory.
893がらみのトラブルに巻き込まれた。
I got caught up in a yakuza-related trouble.