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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Example Sentences
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Recent Examples of muck up
But Davidson believes that employees lied to government officials and mucked up the S.E.C. investigation.
—
Adam Iscoe, New Yorker, 31 Mar. 2025
Employing Pitino’s signature full-court press, St. John’s was able to muck up the game to set up a close finish.
—Rohan Nadkarni, NBC news, 22 Mar. 2025
If anyone was concerned about Rudy Gobert’s return to the lineup potentially mucking up what’s been a good Timberwolves offense of late, Sunday’s result had to alleviate some anxiety.
—Jace Frederick, Twin Cities, 10 Mar. 2025
Of all the crew members, Mouse is the most philosophical, speaking early about how the machines have mucked up the taste of his favorite cereal.
—Mathew Rodriguez, Them, 6 Mar. 2025
See All Example Sentences for muck up
Adam Iscoe, New Yorker, 31 Mar. 2025
Employing Pitino’s signature full-court press, St. John’s was able to muck up the game to set up a close finish.
—Rohan Nadkarni, NBC news, 22 Mar. 2025
If anyone was concerned about Rudy Gobert’s return to the lineup potentially mucking up what’s been a good Timberwolves offense of late, Sunday’s result had to alleviate some anxiety.
—Jace Frederick, Twin Cities, 10 Mar. 2025
Of all the crew members, Mouse is the most philosophical, speaking early about how the machines have mucked up the taste of his favorite cereal.
—Mathew Rodriguez, Them, 6 Mar. 2025
See All Example Sentences for muck up
Recent Examples of Synonyms for muck up
Verb
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But then Superman lost flight and Warners fumbled the lucrative Reeve franchise greatly.—
Anthony D'Alessandro,
Deadline,
8 July 2025
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Ferguson couldn't find the end zone once, and even fumbled the ball four times, after preventing fumbles entirely during his first two seasons in the league.—
Justin Grasso,
MSNBC Newsweek,
20 June 2025
Verb
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In the marquee Challenger matchup of the weekend, a rematch of the Mid-Season final, Las Vegas blew the doors off of Nashville.—
Todd Boss,
Forbes.com,
21 July 2025
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Kaus was setting up the umbrella when a gust of wind blew her off a lifeguard stand, dropping her on the point end of the 1-inch metal pole, NJ.com reported.—
Julia Bonavita,
FOXNews.com,
21 July 2025
Verb
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Democrats are facing pressure to fight Trump, Republicans are cutting spending with the rescissions package, and somehow Congress always finds a way to screw up the regular spending bill process.—
Burgess Everett,
semafor.com,
22 July 2025
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Now the most popular thing on this carnival ride is the Home Run Derby, which isn’t baseball, but a show of strength — and to me, a clown show with juiced baseballs. Tatis wisely chose to skip this Derby, which has been known to screw up swings.—
Nick Canepa,
San Diego Union-Tribune,
12 July 2025
Verb
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Year-long court battles have been waged over exactly how clean the water in the Everglades has to be without fouling up the whole system.—
Alex Harris
July 3,
Miami Herald,
3 July 2025
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His idea is included in the tweet below: By adopting this policy, the league would immediately change the calculations that come with fouling up three.—
Mat Issa,
Forbes.com,
27 May 2025
Verb
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Some adults agreed, but others made comments about me ruining the mood.—
Nicholas Rice,
People.com,
20 July 2025
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Nothing ruins the vibe of a beautiful backyard faster than dull, discolored patio furniture that’s more of an eyesore than an inviting lounge spot.—
Mariana Best,
Better Homes & Gardens,
20 July 2025
Verb
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Initially meant to be filmed simultaneously with the first installment, the sequel faced internal battles, forcing initial director Richard Donner to be booted from the project.—
Tim Grierson,
Vulture,
11 July 2025
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Reinventing Kong The first thing players will notice upon booting up Donkey Kong Bananza is that its titular ape looks pretty different.—
Christopher Cruz,
Rolling Stone,
10 July 2025
Cite this Entry
“Muck up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/muck%20up. Accessed 26 Jul. 2025.
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