mess with

phrasal verb·1 sense·particle with

Usefulness

Meanings

1

Touch or change something carelessly when you should not

Interferenceinformal

Why “with”? Unwanted contact changes, disturbs, or damages something.

Please do not mess with the settings.
Please do not change the settings carelessly.
Someone messed with my bike while I was inside.
Someone touched or changed my bike carelessly while I was inside.

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Please do not mess with the settings. What does it mean?

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