muck up

verb

mucked up; mucking up; mucks up

transitive verb

: to make a mess of : bungle, spoil

Examples of muck up in a Sentence

I swear, she mucks up everything she tries.
Recent Examples on the Web
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.
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 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 Terminology, however, is insufficient: the Promising Young Woman is messier and more complicated than the rape revenge subgenre or tales of women done wrong, a pastiche of contradictions that further mucks up Northrop Frye’s distinct archetypal schema and heightens its own significance. Meg Pillow july 31, Literary Hub, 31 July 2025 Organizers called off the start of the Challenger Series portion of the competition on Wednesday, July 30, due to itty-bitty surf and a funky wind that was mucking up the conditions even more. Laylan Connelly, Oc Register, 30 July 2025 See All Example Sentences for muck up

Word History

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of muck up was in 1896

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Cite this Entry

“Muck up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/muck%20up. Accessed 30 Sep. 2025.

Last Updated: - Updated example sentences
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