やくざ

警察(けいさつ)はやくざを逮捕(たいほ)するために必死(ひっし)です。

The police are desperate to arrest the yakuza (a member of the Japanese mafia). {professional gambler or ruffian (esp. a member of the Japanese mafia), yakuza (member), uselessness, purposelessness}

やくざなこの仕事(しごと)は小学生(しょうがくせい)にでもすることが出来(でき)る。

Even a grade schooler could do this worthless job. {professional gambler or ruffian (esp. a member of the Japanese mafia), yakuza (member), uselessness, purposelessness}

平和(へいわ)な人生(じんせい)を送(おく)りたい人(ひと)はヤクザとは関(かか)わるべきではありません。

People who want to lead a peaceful life should not get involved with yakuza (members), who are professional gamblers or ruffians, especially those in the Japanese mafia. {professional gambler or ruffian (esp. a member of the Japanese mafia), yakuza (member), uselessness, purposelessness}

あのやくざグループの親分(おやぶん)が躊躇(ちゅうちょ)なく人(ひと)を殺(ころ)すことなんて、疑(うたが)うべくもない。

There's no doubt that the boss of that yakuza group wouldn't hesitate to kill someone. {professional gambler or ruffian (esp. a member of the Japanese mafia), yakuza (member), uselessness, purposelessness}

マフィアの世界(せかい)には及(およ)ばないだろうが、ヤクザの世界(せかい)でも殺(ころ)しはよくあるらしい。

It might not reach the level of the mafia world, but it seems that killings are quite common even in the world of the yakuza, the Japanese mafia. {professional gambler or ruffian (esp. a member of the Japanese mafia), yakuza (member), uselessness, purposelessness}