as in fumbling
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 mucking up
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
What's mucking up the process is a telepathic outlier named The Mule (Pilou Asbæk), whose ravenous appetite for galactic dominance has created anomalies in Seldon's branching prognostications of how this whole ordeal will unfold.
—Jeff Spry, Space.com, 29 Aug. 2025
The hydrogen flow keeps vaporized tin from mucking up the system’s optics.
—IEEE Spectrum, 12 June 2023
Chris Gardner, HollywoodReporter, 14 Nov. 2025
What's mucking up the process is a telepathic outlier named The Mule (Pilou Asbæk), whose ravenous appetite for galactic dominance has created anomalies in Seldon's branching prognostications of how this whole ordeal will unfold.
—Jeff Spry, Space.com, 29 Aug. 2025
The hydrogen flow keeps vaporized tin from mucking up the system’s optics.
—IEEE Spectrum, 12 June 2023
Recent Examples of Synonyms for mucking up
Verb
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With the title in their grasp, the Ducks have greased up their fingers, fumbling into a four-game winless slump.—
Andrew Knoll,
Oc Register,
4 Apr. 2026
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Last season’s Detroit Tigers endured the worst divisional collapse in history, fumbling an AL Central lead that reached 15 1/2 games in July.—
Cody Stavenhagen,
New York Times,
25 Mar. 2026
Verb
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These days, revivals that just manage to come and go without screwing up are seen as, if not a success, than an acceptable effort.—
Ben Travers,
IndieWire,
10 Apr. 2026
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First of all, don’t hide misdeeds and screwups, which comes naturally by not committing misdeeds and not screwing up.—
Eleanor Dearman,
Fort Worth Star-Telegram,
14 Feb. 2026
Verb
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Videos captured the scene, which included people blowing whistles and horns, and neighbors screaming at more than a dozen gun-toting agents to leave Thao's family alone.—
WCCO Staff,
CBS News,
13 Apr. 2026
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Videos captured the scene, which included people blowing whistles and horns, and neighbors screaming at more than a dozen gun-toting agents to leave Thao’s family alone.—
Mark Vancleave,
Los Angeles Times,
13 Apr. 2026
Cite this Entry
“Mucking up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mucking%20up. Accessed 16 Apr. 2026.
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