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mess around

B1 informal separable both
In simple words

To play around doing nothing important, or to be dishonest and unfair to someone.

Literal meaning: To cause disorder (mess) in the surrounding area — idiomatically extended to mean wasting time or disrespecting someone.

Meanings

1 B1 idiomatic informal

To waste time doing unimportant or silly things.

"We spent the whole morning just messing around instead of packing for the trip."

""Stop messing around and get serious about your future.""

— Common parental/coaching expression widely attested in American informal speech.
Grammar: inseparable
2 B1 idiomatic informal

To treat someone in a dishonest or inconsiderate way.

"Don't mess me around — just tell me if you want the job or not."

Grammar: separable
3 B1 informal

To casually experiment or tinker with something.

"She likes messing around with code on weekends just to see what she can build."

Grammar: inseparable
4 B2 idiomatic informal

To be sexually unfaithful or to engage in casual sexual activity.

"She found out he had been messing around and ended the relationship."

Grammar: inseparable
Usage notes

The dominant form in American English. 'Mess someone around' means to treat them inconsiderately. Can also imply sexual infidelity in certain contexts ('he was messing around'). Widely used across all ages.

Commonly used with

stop kids time computers people ideas

Forms

Base
mess around
I/you/we/they
3rd person
messes around
he/she/it
Past simple
messed around
yesterday
Past participle
messed around
have + pp
-ing form
messing around
continuous

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Synonyms

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