jam the brakes on

to press down hard on a vehicle's brakes. Alice jammed the brakes on and the car skidded all over the place. She jammed on the brakes.

Name	Pronounced	Usage
Larisa	lah-REE-sah (Russian)	Russian, Ukrainian, Romanian, Latvian, Greek Mythology
Ruh	-	Arabic
Pauwel	POW-vəl, POW-wəl	Dutch (Archaic)
ÓLavur	-	Faroese
Emyr	-	Welsh
Iggy	-	English