noun
round-up; wholesale arrest; catching all at once
Often used for police operations where many suspects are arrested simultaneously; also used figuratively for capturing or collecting everything in one sweep.
警察は麻薬組織を一網打尽にした。
The police rounded up the drug ring in one sweep.
新作ゲームで敵を一網打尽にする快感がたまらない。
The thrill of wiping out all enemies at once in the new game is irresistible.