clamp down on
verb1
Idiomatic To 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.
- 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:
1 more example
- 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: