muck

1 of 2

noun

ˈmək 

1

: soft moist farmyard manure

2

: slimy dirt or filth

3

a

: defamatory remarks or writings

b

: rubbish, nonsense

mindless muck

4

a(1)

: dark highly organic soil

(2)

: mire, mud

b

: something resembling muck : gunk

5

: material removed in the process of excavating or mining

muck

2 of 2

verb

mucked; mucking; mucks

transitive verb

1

a

: to clean up

especially : to clear of manure or filth

—usually used with out

b

: to clear of muck

2

: to dress (something, such as soil) with muck

3

: to dirty with or as if with muck : soil

intransitive verb

1

: to move or load muck (as in a mine)

2

a

: to engage in aimless activity

—usually used with about or around

b

: putter, tinker

—usually used with about or around

mucking around with his computer

c

: interfere, meddle

—usually used with about or around

mucker noun

Synonyms

Noun

• crud
• dirt
• filth
• grime
• gunk
• smut
• soil

Verb

• befoul
• begrime
• bemire
• besmirch
• blacken
• daub
• dirty
• distain [archaic]
• foul
• gaum [dialect]
• grime
• mire
• muddy
• smirch
• smudge
• soil
• stain
• sully

Examples of muck in a Sentence

Noun

Clean that muck off your shoes.

spattered with muck from the pigpen

Verb

you can't work in the garden and not expect to muck your clothes

Recent Examples on the Web

Noun

The war settled into a brutal battle of attrition with limited movement along a frontline stretching for 600 miles through muck of eastern Ukraine. —Dave Goldiner, New York Daily News, 11 Mar. 2025

The Clippers’ success lately isn’t just stemming from them making games ugly with their defense and slogging through the muck. —Zach Harper, The Athletic, 24 Mar. 2025

Verb

Even though this team isn't good at shooting threes, their defense mucks everything up enough to win games. —Mark Davis, Newsweek, 15 Mar. 2025

The Mountaineers found some success with the full court press in the third quarter and used the ball pressure to muck the game up. —Steven Johnson, Fort Worth Star-Telegram, 24 Feb. 2025

Word History

Etymology

Noun

Middle English muk, perhaps from Old English -moc; akin to Old Norse myki dung

First Known Use

Noun

13th century, in the meaning defined at sense 1

Verb

14th century, in the meaning defined at transitive sense 1a

Phrases Containing muck

• high-muck-a-muck
• high-muckety-muck
• make a muck of (something)
• muck about/around
• muck about/around with
• muck-a-muck
• muckety-muck
• muck in
• muck out
• muck up
• mucky-muck

Rhymes for muck

• chuck
• cluck
• duck
• huck
• luck
• pluck
• puck
• ruck
• schmuck
• shuck
• snuck
• struck

Kids Definition

muck

1 of 2 noun

ˈmək

1

: soft moist barnyard manure

2

: dirt sense 1, filth

3

a

: dark rich soil

b

: mud, mire

mucky

ˈmək-ē

adjective

muck

2 of 2 verb

1

: to clean up

especially : to clear of manure or filth

2

: to dress with muck

3

: to dirty with or as if with muck