What is "suicide door"

n. (context slang English) A car door hinged towards the rear of the vehicle.

A "suicide door" is the slang term for an automobile door hinged at its rear rather than the front. Such doors were originally used on horse-drawn carriages, but are rarely found on modern vehicles due primarily to safety concerns.

Popularized in the custom car trade, the term is avoided by major automobile manufacturers in favor of alternatives such as "coach doors" ( Rolls-Royce), "FlexDoors" ( Opel), "freestyle doors" ( Mazda), "rear access doors" ( Saturn), and "rear-hinged doors" (preferred technical term).