slam/jam on the brakes

idiom

Definition of slam/jam on the brakes

: to press down hard on the brakes of a car to make it stop suddenly He slammed on the brakes to avoid hitting the other car. You risk getting into an accident if you jam on the brakes when another car is right behind you.

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“Slam/jam on the brakes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/slam%2Fjam%20on%20the%20brakes. Accessed 22 Oct. 2020.

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