slushbox

listen to the pronunciation of slushbox
Английский Язык - Английский Язык
An automatic transmission (a term used by automobile aficionados, derisively describing the reduction of performance in comparison to a manual transmission)

Slushboxes are taking over the scrub. Once scorned in the bush, the automatic gearbox today is more widely accepted in traditional four-wheel drive wagons. Bush bashers go auto. The Sunday Telegraph. 2002 July 21. Pg. A05.

{automotive) An automatic transmission (a term used by automobile aficionados, derisively describing the reduction of performance in comparison to a manual transmission)