muck up

This page is about the slang term muck up.

Meaning: to ruin something, or do it very badly

For example:

  • I studied really hard for the exam because I didn't want to muck it up.

  • They mucked up my order and sent me the wrong books.

Quick Quiz:

Jamie's job was to take care of the newspaper ad. He mucked it up by

a. getting a cheap advertising rate

b. getting it done before the deadline

c. putting the wrong phone number in the ad

Slang of the Day

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Contributor: Matt Errey