slams on the brakes

Halts with urgency

To slam on the brakes is to stop a vehicle suddenly and forcefully, pressing the brake pedal hard: A deer ran out and I slammed on the brakes.

Figuratively, it means to halt any activity abruptly: The company slammed on the brakes when funding dried up.

The phrase emphasizes urgency or panic rather than gradual deceleration.

Related

rear-end collision · skid marks · inattentiveness · situational awareness · close call · hesitation · overreaction · road hazards · deer in headlights · screech · defensive driving · pedestrian safety · stopping distance · tire grip · accident prevention · near miss · distraction · traction control

Opposites
acceleration/deceleration action

slams on the brakesfloors it

Accelerates to maximum

hits the gas · speeds up · takes off

METAPHORICAL MOMENTUM (projects/decisions)

slams on the brakesfull speed ahead

Command for maximum thrust

pushes forward · doubles down · forges ahead · presses on · plows ahead

Family

slam, slams, slammed, slamming, slammer, brake, brakes, braked, braking

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G