sudden braking; slamming on the brakes
Refers to abruptly applying the brakes in a vehicle, often in an emergency or unexpectedly.
The car in front slammed on the brakes, and I almost rear-ended it.
Sudden braking is dangerous, so please keep enough distance between cars.
A cat jumped out, so I slammed on the brakes.
The car in front stopped suddenly, so I hit the brakes hard.
The bus's brakes were slammed on suddenly, and the passengers stumbled.