dead manβs pedal
n.β Β«Hardly noticeable, under his right foot, is a small pedalβresembling the clutch pedal on your automobile. “Thatβs called βdead manβs pedal’,β Charlie explains. “The weight of my foot holds it down. If for any reason my foot should be removedβin case of heart failure or if I should be thrown from the seatβthe motors would be switched off and the brakes locked.”Β» ββHigh For Streamliners” by Andy Hamilton Los Angeles Times Sunday Magazine June 20, 1937. (source: Double-Tongued Dictionary)