Word.ws English Dictionary

slushbox

slushbox noun: synonym of automatic transmission.

Noun

slushbox (plural slushboxes)

  1. (slang) Synonym of automatic transmission.
    • The slushbox did nothing to improve an already sluggish response.
    • 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.

Synonyms of slushbox

Forms of slushbox

pluralslushboxes

Origin of slushbox

From slush + box, in reference to the fluid-coupling action of the torque converter. A popular notion portrays this action as "slushing around" that involves greater power losses than with manual transmissions, although the notion is a comic exaggeration.

Questions about slushbox

What does slushbox mean?
Slushbox means synonym of automatic transmission.
What part of speech is slushbox?
Slushbox is a noun.
What is the plural of slushbox?
The plural of slushbox is slushboxes.

Words near slushbox in the dictionary

  1. slush-casts
  2. slusharita
  3. slusharitas
  4. slushball
  5. slushballs
  6. slushbox
  7. slushboxes
  8. slushbreaker
  9. slushbreakers
  10. slushed
  11. slushed up

Source and license

Adapted from Wiktionary: slushbox (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-slushbox.ogg.

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