thunk

T1H4U1N1K5
/θʌŋk/

interjection

Representing the dull sound of the impact of a heavy object striking another and coming to an immediate standstill, with neither object being broken by the impact.

“I was thunked on the head by his stick.”

UncommonScrabble 12

Meanings

thunk1

verb
  1. humorousnonstandardparticiplepastpast participle of think

    Who would have thunk those guys would have a problem with a little lie?

    3 more examples

    A skunk sat on a stump and thunk the stump stunk, but the stump thunk that the skunk stunk.

    I could think of things I never thunk before ...

    1939, “If I Only Had a Brain”, Harold Arlen (music), E.Y. Harburg (lyrics) (music), performed by Ray Bolger as the Scarecrow, from The Wizard of Oz

    “Do you think I could have a minute to think about it?” “The prisoner needs a moment to think about it.” “It's ok. I thought about it.” “He's thunk about it.” “Okay. And I agree.”

    2021 September 2, Paul Simms, “The Prisoner” (19:09 from the start), in What We Do in the Shadows, season 3, episode 1, spoken by Colin Robinson (Mark Proksch)

thunk2

interjection
  1. Representing the dull sound of the impact of a heavy object striking another and coming to an immediate standstill, with neither object being broken by the impact.
verbthunk (third-person singular simple present thunks, present participle thunking, simple past and past participle thunked)

present singular third person thunks · participle present thunking · participle past thunked · past thunked

  1. To strike against something, without breakage, making a "thunk" sound.

    I was thunked on the head by his stick.

thunk3

nounthunk (plural thunks)

plural thunks

  1. functional programmingcomputingA delayed computation.

    Not surprisingly, a thunk is more expensive to store than a single number[…].

    2009, Bryan O'Sullivan, John Goerzen, Donald Bruce Stewart, Real World Haskell, O'Reilly, page 97
  2. computingIn the Scheme programming language, a function or procedure taking no arguments.
  3. computingA specialized subroutine that one software module uses to execute code in another module.

    If the provider of these DLLs has not updated the code to a 32-bit environment, you will have to switch to a new 32-bit library or write thunks between your 32-bit code and the 16-bit DLL.

    1995 October 10, PC Mag, volume 14, number 17, page 326
verbthunk (third-person singular simple present thunks, present participle thunking, simple past and past participle thunked)

present singular third person thunks · participle present thunking · participle past thunked · past thunked

  1. transitivefunctional programmingcomputingTo delay (a computation).

    Not surprisingly, a thunk is more expensive to store than a single number, and the more complex the thunked expression, the more space it needs. For something cheap such as arithmetic, thunking an expression is more computationally expensive than calculating it immediately.

    2009, Bryan O'Sullivan, John Goerzen, Donald Bruce Stewart, Real World Haskell, O'Reilly, page 97
  2. transitivecomputingTo execute (code) by means of a thunk.

    This efficiency is offset by the fact that some of the calls made by Win32 apps must now be thunked down to 16 bits, something that isn't necessary in Windows NT and OS/2.

    1995 May 16, Andrew Schulman, “DOS is Dead? Look Again”, in PC Mag, volume 14, number 9, page 150

Origin

thunk · verb

By analogy with past participles ending in "-unk", such as drunk and sunk.

Full word history & related roots →

thunk · interjection, verb

Onomatopoeic.

Full word history & related roots →

thunk · noun, verb

Said by the inventors to be from the irregular jocular past tense of think (see Etymology 1), being coined when they realised that the type of an argument in ALGOL 60 could be predetermined at compile time (with a little compile-time “thought”).

Full word history & related roots →

Rhymes & wordplay

Rhymes with thunk

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Anagrams

Cite this entry
APA

thunk. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/thunk

MLA

“thunk.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thunk. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “thunk,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/thunk.

Source: thunk on Wiktionary, CC BY-SA 4.0.