Word.ws English Dictionary

swack-up

swack-up noun: a lie; a falsehood.

Noun

swack-up (plural swack-ups)

  1. (UK, dated, school slang) A lie; a falsehood.

Forms of swack-up

pluralswack-ups

Origin of swack-up

UK c. 1860s. Used at Christ's Hospital School, Sussex.

Questions about swack-up

What does swack-up mean?
Swack-up means a lie; a falsehood.
What part of speech is swack-up?
Swack-up is a noun.
What is the plural of swack-up?
The plural of swack-up is swack-ups.

Words near swack-up in the dictionary

  1. Swaby
  2. Swabys
  3. swachh
  4. swack
  5. swack up
  6. swack-up
  7. swack-ups
  8. swacked
  9. swacked up
  10. swacker
  11. swackest

Source and license

Adapted from Wiktionary: swack-up (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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Cite this entry: “swack-up.” Word.ws, https://word.ws/swack-up. Based on Wiktionary, CC BY-SA 4.0.