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  • muck-up
    muck-up
    noun
    a bungled or disordered situation; foul-up.
  • muck up
    muck up
    verb
    (tr) to ruin or spoil; make a mess of
Synonyms

muck-up

American  
[muhk-uhp] / ˈmʌkˌʌp /

noun

Informal.
  1. a bungled or disordered situation; foul-up.


muck up British  

verb

  1. (tr) to ruin or spoil; make a mess of

  2. (intr) to misbehave

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

muck up Idioms  
  1. Bungle, damage, make a mess of, as in Don't let him write the review; he's sure to muck it up. This idiom alludes to the verb muck in the sense of “spread manure on.” [Early 1900s] For a synonym, see foul up.


Etymology

Origin of muck-up

First recorded in 1925–30; noun use of verb phrase muck up

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

I think the IOC made a complete muck-up of it.

From BBC Jan. 7, 2017

Only Nixon's muck-up could have delayed their eventual birth and triumph.

From Time Magazine Archive

The Bruins become not only stout against the run but also muck up opposing passing attacks thanks to a secondary featuring playmaking cornerback Devin Kirkwood.

From Los Angeles Times Aug. 27, 2022

Because Butler is a weak 3-point shooter, Boston will crowd the paint and muck up Miami’s spacing.

From New York Times May 17, 2022

Like dandelions, the Jorō spider appears to fall under the category of "nice" invasive species, that do not seem to muck up the existing ecosystem too much.

From Salon Mar. 10, 2022

And the driving rainstorm served to muck up the pace of the game, though perhaps not as much as Nashville’s pressure.

From Seattle Times Feb. 27, 2022

I muck up my mother’s kitchen floor and pots, cooking the gesso, and ruin panel after panel before I can work out how to paint it on for a smooth working surface.

From "Cat's Eye" by Margaret Atwood

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