jamming on the brakes

Sudden hard stop

Jamming on the brakes means pressing the brake pedal suddenly and forcefully, typically in an emergency: A kid ran into the street and I had to jam on the brakes.

The phrase emphasizes abruptness—not gradual slowing but an immediate, hard stop.

Figuratively, it can describe any sudden halt to momentum: The company jammed on the brakes when costs spiraled.

Related

reaction time · split second · close call · near miss · skid marks · deceleration · tailgating · bumper to bumper · hydraulic system · friction · ABS · distracted driving · mechanical failure · oversteering · collision avoidance · stopping distance · road rage · traffic congestion

Opposites
braking intensity

jamming on the brakesrolling stop

Deceleration without full halt

engine braking

vehicle speed control action

jamming on the brakesflooring it

Accelerating with full force

pedal to the metal · hitting the gas · putting the hammer down · speeding up · full throttle

driving temperament/style

jamming on the brakesdefensive driving

Proactive safe vehicle operation

cruising

Family

jammed, jamming, brake, brakes, braked, braking

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G