footthrottle
nounUK /ˈfʊtˌθrɒt.əl/
US /ˈfʊtˌθrɑː.t̬əl/
A footthrottle is a pedal you press with your foot to make a car go faster.
He pressed the footthrottle gently so the car would not speed up too much.
OTHER MEANINGS
2. A lever or pedal on a machine that controls how much power it makes.
The old tractor's footthrottle was stiff and hard to push.
3. The part of a vehicle that lets the driver add speed by foot.
She kept her foot on the footthrottle while driving up the hill.
4. A control used to increase the flow of fuel or power in an engine.
The mechanic checked the footthrottle to see if it was stuck.