muck up

verb

Definition of muck upnext
as in to fumble
to make or do (something) in a clumsy or unskillful way I swear, she mucks up everything she tries

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of muck up Teams continue to sag off Hart in the half court to try to muck up New York’s offense. — James L. Edwards Iii, New York Times, 10 Apr. 2026 Well, the first and third mucked up their stories with some overly contrived lore about cults and gods, and the fourth was an experiment for the formula that didn’t quite work. — Alison Foreman, IndieWire, 23 Jan. 2026 At least not Will Welch, GQ’s longstanding editor-in-chief and global editorial director, who was absolutely zen about the threat of an atmospheric river mucking up the mag’s Men of the Year celebration last night. — Chris Gardner, HollywoodReporter, 14 Nov. 2025 Lawmakers need to get back to Washington to end the government shutdown - a shutdown that has mucked up travel plans around the country by contributing to widespread flight delays. — Zachary Schermele, USA Today, 11 Nov. 2025 See All Example Sentences for muck up
Recent Examples of Synonyms for muck up
  1. fumble
  2. blow
  3. screw up
  4. foul up
  5. ruin
  6. boot
Verb
  • Most of the world was fumbling and scared, and Fauci seemed to have some idea of what to do.
    — Amy Davidson Sorkin, New Yorker, 1 Aug. 2026
  • After Duran took third on a fly ball, pinch-hitter Joc Pederson hit a ground ball up the middle that was fumbled by Taylor Walls, allowing Duran to score.
    — ABC News, ABC News, 30 July 2026
Definition of fumble
Verb
  • Peter trying to have a normal holiday while grieving Tony, Mysterio’s deception, and the post-credits scene that blows Peter’s life apart — all of it feeds into where the new film finds him.
    — Hannah Abraham, Forbes.com, 2 Aug. 2026
  • Yes, the Padres blew two leads, including one in the eighth inning with two of their high-leverage arms on the mound.
    — Kevin Acee, San Diego Union-Tribune, 2 Aug. 2026
Definition of blow
Verb
  • The fear of failure can do as much harm as actually screwing up.
    — Amy Nicholson, Los Angeles Times, 30 July 2026
  • By the end, Kylian Mbappe, the form player of the tournament, could only screw up his nose in frustration.
    — Adam Crafton, New York Times, 15 July 2026
Definition of screw up
Verb
  • In the end, though, neither an explosion nor a giant spill of fluid that could foul up waterways and the ocean occurred.
    — Hannah Fry, Los Angeles Times, 27 May 2026
  • An incorrect connection or approach can foul up a line, damage a plane or cause an accident.
    — Tara Copp The Washington Post, Arkansas Online, 25 May 2026
Definition of foul up
Verb
  • Being asked to prove yourself to AI can play havoc on your confidence and ruin your chances of getting your foot in the door.
    — Colleen Batchelder, Forbes.com, 29 July 2026
  • Not that Miss Manners is excusing those who burst into dinner parties after the roast has been ruined — along with the other guests’ attitudes, most likely — and then blame it on traffic.
    — Judith Martin, Mercury News, 28 July 2026
Definition of ruin
Verb
  • Predatory towing, which can include booting and towing at exorbitant prices, affects residents, small business owners and truck drivers across Charlotte.
    — Laura Horne, Charlotte Observer, 31 July 2026
  • In May, police and city workers returned to Jose Rizal Park and again booted out dealers and addicts, preparing the park for a renovation.
    — Michael Powell, The Atlantic, 30 July 2026
Definition of boot

Browse Nearby Words

mucks up
muck up
mucky
See all Nearby Words

Cite this Entry

“Muck up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/muck%20up. Accessed 4 Aug. 2026.

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Last Updated: - Updated example sentences
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