[ noun ] (informal) the application of maximum thrust
"he slammed the throttle to the firewall"
Used in print(Donald J. Plantz, Sweeney Squadron....)
Greg slammed his throttle to the fire_wall and rammed up the RPM , and the engine responded as if it had been waiting .
[ noun ] (architecture) fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building