To make a mess of; to untidy, disorder, soil, or muss.
The afternoon breeze messed up my hair.
[…] kwatumas, those aggressive and sharp-toothed eels that so thoroughly mess up one's tackle when hooked […]1962, S. Schoeman, Strike!: A Handbook of Angling in South African Coastal Waters, page 58:
2
To cause a problem with; to introduce an error or mistake in; to make muddled or confused; spoil; ruin.
The change messed something up, and it's not working anymore.
3
To botch, bungle; to perform poorly on.
Well, I messed up my solo, but otherwise it was a good concert.
4
To make a mistake; to do something incorrectly; to perform poorly.
He has a hard time getting started because he's afraid he'll mess up.
She messed up on her final exam.
1 more example
What? Are we all just supposed to forgive this? This guy messed up in the worst possible way he could! Now we have nothing!2026 June 19, Gooseworx, “Remember” (1:19 from the start), in The Amazing Digital Circus, episode 9, spoken by Jax (Michael Kovach):
5
To cause (another person) to make unwanted mistakes in a given task, usually through distraction or obnoxious behavior.