Select the most appropriate meaning of the given idiom

Pedal to the metal

To go full speed, especially while driving a vehicle.

The correct answer is option 2. To go full speed, especially while driving a vehicle.

The idiom "pedal to the metal" originates from driving a vehicle, specifically referring to pressing the accelerator pedal down as far as possible, causing the vehicle to accelerate rapidly. It implies driving at full speed or maximum capacity, often in a situation where quick action or extreme effort is necessary. This idiom is commonly used to describe situations where someone is putting forth maximum effort or moving forward with great speed and intensity, analogous to pressing the accelerator pedal to the floor in a vehicle.