Wiktionary

knock off

See also: knockoff and knock-off

English

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Etymology

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In the verb sense of stopping work, said to be from the practice aboard slave galleys to have a man beat time for the rowers by knocking on a block or drum; when he stopped, the rowers could rest.

Pronunciation

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Verb

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knock off (third-person singular simple present knocks off, present participle knocking off, simple past and past participle knocked off)

  1. (transitive, intransitive, slang) To halt one's work or other activity.
    Synonyms: call it a day, call it a night, down tools
    I think I'll knock off for the evening and go to bed.
  2. (transitive, slang) To kill.
    Synonyms: bump off, do away with, whack; see also Thesaurus:kill
    The mobsters hired the guy to knock off their enemies.
    1. (sports, by extension) To defeat.
      The Hammers knocked off Arsenal on the strength of a 78th-minute tally from Jarrod Bowen.
  3. (transitive) To remove, as a discount or estimate.
    Synonyms: deduct, take off; see also Thesaurus:remove
    They agreed to knock off 20% of the price.
  4. (transitive, slang) To rob.
    Synonyms: mill, burgle; see also Thesaurus:steal
    They decided to knock off a liquor store downtown.
  5. (transitive) To make a copy of, as of a design.
    Synonyms: plagiarize, rip off
    They send people to the shows in Milan for "ideas", which means knocking off the designs they guess would sell.
    • 2024 October 8, Lauren Gruber, Megan Uy, “We Found Sooo Many Viral TikTok Items on Sale for October Prime Day”, in Cosmopolitan‎[1]:
      Whipping up a healthy breakfast has never been easier. Neither has knocking off your fave Starbucks snack either, thanks to this TikTok-approved egg bite maker.
  6. (transitive) To assign (an item) to a bidder at an auction, indicated by knocking on the counter.
  7. (transitive, slang, vulgar, British) To have sex with (a woman).
    • 1965, Claude Brown, Manchild in the Promised Land:
      I took her down to Basin Street and to a movie, then took her to my room and knocked her off.
    Synonyms: coitize, go to bed with, sleep with; see also Thesaurus:copulate with
  8. (transitive, informal) To accomplish hastily.
    Synonym: knock out
    I knocked off a couple of quick sketches before the design meeting.
  9. To remove (something or someone) by hitting.
    He was knocked off his bike.
    • 1943 May and June, “Notes and News: Effective Locomotive "Ack-Ack" Fire”, in Railway Magazine, page 180:
      It now appears that the locomotive did not blow up, as was commonly stated at the time, but that the aeroplane flew so low as to come into contact with the dome of the engine, knocking it off. It was the combination of the impact and the uprush of steam that so disturbed the equilibrium of the raider as to cause it to crash.

Derived terms

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Descendants

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  • → Dutch: afnokken (calque)

Translations

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Noun

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knock off (plural knock offs)

  1. Nonstandard spelling of knockoff.
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