as in to fumble
to make or do (something) in a clumsy or unskillful way
I swear, she mucks up everything she tries
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Recent Examples of muck up
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
While the Governor's Cup may be safe, there are other ways the ACC's and SEC's scheduling moves could muck up Louisville's future football schedules.
—Payton Titus, Louisville Courier Journal, 25 Sep. 2025
See All Example Sentences for muck up
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
While the Governor's Cup may be safe, there are other ways the ACC's and SEC's scheduling moves could muck up Louisville's future football schedules.
—Payton Titus, Louisville Courier Journal, 25 Sep. 2025
See All Example Sentences for muck up
Recent Examples of Synonyms for muck up
Verb
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Given how badly Karen Bass has fumbled as mayor, Raman couldn’t do much worse.—
Sal Rodriguez,
Daily News,
28 May 2026
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Ethan Bonner forced Dulcich to fumble, and rookie linebacker Trey Moore recovered it for the defense.—
Omar Kelly,
Miami Herald,
27 May 2026
Verb
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Somewhere a hand was raised, a whistle was blown, and all at once the butchers were out of their stalls, assembling in the aisles.—
Literary Hub,
Literary Hub,
3 June 2026
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The Washington Nationals used Richard Lovelady, who blew Monday’s series opener, as an opener, followed by veteran Miles Mikolas for a bulk appearance, their most promising combination given their roster construction and arms available.—
Danielle Allentuck,
Washington Post,
3 June 2026
Verb
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The two screwed up a top-rope stunner as Excalibur struggled to explain what happened like a 2026 Jim Ross.—
Alfred Konuwa,
Forbes.com,
24 May 2026
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Myers nails the realistic teen who is a far cry from the unflappable Nancy Drew, screwing up plenty and often terrified of what she's gotten herself into.—
Kevin Jacobsen,
Entertainment Weekly,
22 May 2026
Verb
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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
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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
Verb
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Our house, ruined by the 1987 Whittier Narrows earthquake, was rebuilt from the foundation up.—
Literary Hub,
Literary Hub,
1 June 2026
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Undefeated this season on clay, the 15th-seeded Ukrainian player reached the quarterfinals at the French Open for the first time on Sunday by taking out four-time champion Iga Swiatek 7-5, 6-1 and ruining her birthday.—
ABC News,
ABC News,
31 May 2026
Verb
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After Rangers first baseman Jake Burger got aboard with a leadoff single, Garcia booted a ground ball off the bat of Ezequiel Duran.—
Jaylon Thompson,
Kansas City Star,
30 May 2026
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The ice giant getting booted out of the solar system isn't the thing that spared Jupiter's and Uranus' moons from a similar fate.—
Kiona N. Smith,
Space.com,
29 May 2026
Cite this Entry
“Muck up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/muck%20up. Accessed 5 Jun. 2026.
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