muck

M3U1C3K5
/mʌk//mʊk/

noun

Slimy mud, sludge.

“What's that green muck on the floor?”

Less commonScrabble 12

Meanings

muck1

nounmuck (usually uncountable, plural mucks)

plural mucks

  1. uncountableusuallySlimy mud, sludge.

    I need to clean the muck off my shirt.

    1 more example

    The car was covered in muck from the rally race.

  2. uncountableusuallySoft (or slimy) manure.
  3. alsofigurativelyuncountableusuallyAnything filthy or vile. Dirt; something that makes another thing dirty.

    What's that green muck on the floor?

    1 more example

    "I am so happy to be away from all the muck," she [Melinda French Gates] said, adding elsewhere in the interview: "Whatever questions remain there of what - I can't even begin to know all of it - those questions are for those people and for even my ex-husband.

    2026 February 25, Ben Hatton, quoting Melinda French Gates, “Bill Gates 'took responsibility' over Epstein ties in staff meeting, foundation says”, in BBC
  4. uncountableusuallyGrub, slop, swill
  5. derogatoryobsoleteuncountableusuallyMoney.

    the fatal muck we quarrell'd for

    c. 1622, John Fletcher, Philip Massinger, “The Sea-Voyage. A Comedy.”, in Comedies and Tragedies […], London: […] Humphrey Robinson, […], and for Humphrey Moseley […], published 1647, →OCLC, Act V, scene ii

    Synonyms: ackers, bees and honey, blunt, bones, brass, bread, bread and honey, Bugs Bunny

  6. uncountableusuallycard gamesThe pile of discarded cards.
  7. ScotlandslanguncountableusuallyHeroin.

    Synonyms: Big H, boy, brown sugar, brown, bujj, diacetylmorphine, diamorphine, dog food

  8. slanguncountableusuallyPornography.
  9. slanguncountableusuallySemen.

    Ah blurt oot ma muck n pull oot.

    1994 [1993], Irvine Welsh, “Bang to Rites”, in Trainspotting, London: Minerva, →ISBN, page 219

    Synonyms: baby batter, baby gravy, balljuice, boy juice, cock juice, cock snot, come, cream

  10. uncountableusuallyOttawa Valley DialectFood, especially that eaten quickly.

    Does I need fur t' mek som muck fur yis two?

verbmuck (third-person singular simple present mucks, present participle mucking, simple past and past participle mucked)

present singular third person mucks · participle present mucking · participle past mucked · past mucked

  1. transitiveTo shovel muck from.

    mucking stalls

    1 more example

    We need to muck the stable before it gets too thick.

  2. transitiveTo manure with muck.
  3. To do a dirty job.
  4. colloquialcard gamesTo pass, to fold without showing one's cards, often done when a better hand has already been revealed.
  5. AustraliainformalintransitiveTo vomit.

    Move out of the way: I think I'm gonna muck.

  6. CanadaslangTo eat; to devour or guzzle.

Muck2

proper nounMuck (plural Mucks)

plural Mucks

Muck3

proper noun
  1. A small island in the Small Isles, Highland council area, Scotland (OS grid ref NM4179).

MUCK4

nounMUCK (plural MUCKs)

plural MUCKs

  1. InternetA kind of textbased online roleplaying game incorporating social interaction and allowing players to extend the environment with new rooms, objects, etc.

Synonyms & antonyms

More synonyms by meaning

nounany thick, viscous matter

Broader

nounfecal matter of animals

verbspread manure, as for fertilization

Similar

verbsoil with mud, muck, or mire

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

muck · noun, verb

  1. Proto-Indo-European*(s)mewg-
  2. Proto-Germanic*muk-
  3. Proto-Germanic*mukį̄“dung; manure”
  4. Old Norsemyki
  5. Middle Englishmok
  6. Englishmuck

From Middle English mok, muk, from Old Norse myki, mykr (“dung”) or less likely Old English *moc, *moce (in hlōsmoc (“pigsty dung”) and lustmoce (“lady's smock (Cardamine pratensis)”)) (compare Icelandic mykja and Danish møg ("dung")), from Proto-Germanic *mukį̄ (“dung; manure”), from Proto-Germanic *muk-, from Proto-Indo-European *(s)mewg-, *mewk- (“slick, slippery”) (compare Welsh mign (“swamp”), Latin mūcus (“snot”), mucere (“to be moldy or musty”), Latvian mukls (“swampy”), Albanian myk (“mould”), Ancient Greek μύξα (múxa, “mucus, lamp wick”), Ancient Greek μύκης (múkēs, “mushroom”), German Mauke (“mud fever”)), from *(s)mewg, mewk 'to slip'. More at meek.

Full word history & related roots →

Muck · proper noun

From the German surname, from Mücke (“mosquito”).

Full word history & related roots →

Muck · proper noun

  1. Scottish Gaelicmuc“pig”
  2. EnglishMuck

From Scottish Gaelic muc (“pig”), recorded 1370 as Helantmok (Isle of pigs).

Full word history & related roots →

MUCK · noun

From muck, as a play on mud (“a mucky substance”) and MUD (“multi-user dungeon”). Various backronyms have been invented but are not the true origin.

Full word history & related roots →

Translations

Bulgarian мръсотия, помия
  • мръсотия (mrăsotija)anything filthy and vile, dirt
  • помия (pomija)grub, slop, swill
  • оборски тор (oborski tor)soft manure
Catalan brutícia, porqueria
  • brutíciaslimy mud
  • porqueriaslimy mud
  • femssoft manure
Czech maglajz, sajrajt
  • maglajzslimy mud
  • sajrajtslimy mud
  • blátoslimy mud
  • sajrajtanything filthy and vile, dirt
  • svinstvoanything filthy and vile, dirt
  • hnusanything filthy and vile, dirt
  • mrvasoft manure
  • hnůjsoft manure
  • vykydatshovel muck
  • kydatshovel muck
Danish muge ud
  • muge udshovel muck
Esperanto koto, ŝlimo
  • kotoslimy mud
  • ŝlimoslimy mud
  • malpuraĵoanything filthy and vile, dirt
Finnish muta, lieju
  • mutaslimy mud
  • liejuslimy mud
French boue, gadoue
  • boueslimy mud
  • gadoueslimy mud
  • fumiersoft manure
German Schlamm, Matsch
  • Schlammslimy mud
  • Matschslimy mud
  • Schmiereslimy mud
  • Schmadderslimy mud
  • Schmuddelslimy mud
  • Siffslimy mud
  • Dreckanything filthy and vile, dirt
  • Schmutzanything filthy and vile, dirt
  • Fraßgrub, slop, swill
  • Saufraßgrub, slop, swill
  • Brühegrub, slop, swill
  • Schlangenfraßgrub, slop, swill
  • ausmistenshovel muck
Hindi कीचड़
  • कीचड़ (kīcaṛ)slimy mud
Irish clábar
  • clábarslimy mud
Italian sporcizia, porcheria
  • sporciziaslimy mud
  • porcheriaslimy mud
  • letamesoft manure
  • spalare letameshovel muck
  • spalareshovel muck
  • spalare merdashovel muck
Japanese 泥, 黒泥土
  • 泥 (doro)slimy mud
  • 黒泥土 (kokudeido)slimy mud
  • 汚物anything filthy and vile, dirt
  • 堆肥 (taihi)soft manure
  • 腐葉土 (fuyōdo)soft manure
  • 腐植土 (fushokudo)soft manure
Korean 두엄
  • 두엄 (dueom)slimy mud
Māori ōi
  • ōislimy mud
Russian грязь, жи́жа
  • грязь (grjazʹ)slimy mud
  • жи́жа (žíža)slimy mud
  • слякоть (sljakotʹ)slimy mud
  • наво́з (navóz)soft manure
  • выгребать (vygrebatʹ)shovel muck
Spanish porquería, mugre
  • porqueríaslimy mud
  • mugreanything filthy and vile, dirt
  • estiércolsoft manure
Swedish smörja, smörja
  • smörjaslimy mud
  • smörjaanything filthy and vile, dirt
  • mockashovel muck
Tagalog maputik, tae
  • maputikslimy mud
  • taesoft manure

Rhymes & wordplay

Rhymes with muck

All rhymes →
Cite this entry
APA

muck. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/muck

MLA

“muck.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/muck. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “muck,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/muck.

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