clamp down on

present singular third person clamps down on · participle present clamping down on · participle past clamped down on · past clamped down on

1. idiomatictransitiveTo take measures to stop (something); to put an end to (something); to exert tighter control of (something); to treat (someone or something) more harshly.

   The government aims to clamp down on underage drinking.

   2 more examples

   American referee Mike Geiger's failure to clamp down on early misdemeanours led to him losing control of a game that Colombia seemed determined to turn into a battle.

   2018 July 3, Phil McNulty, “Colombia 1 - 1 England”, in BBC Sport

   A few chilling examples of what GPT-4 can do — or, more accurately, what it did do, before OpenAI clamped down on it — can be found in a document released by OpenAI this week.

   2023 March 15, Kevin Roose, “GPT-4 Is Exciting and Scary”, in The New York Times