yakuza
/jəˈkuːzə/noun
(复同单)(the Yakuza)
1- a powerful Japanese criminal organization八九三黑帮（日本一有势力犯罪组织）。
1.1
- a Japanese gangster or racketeer（日本的）“野寇崽”, 歹徒, 敲诈勒索者。
词源
Japanese， from ya 'eight' + ku 'nine' + za 'three'， referring to the worst hand in a gambling game.