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3. clean up act

clean up act

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clean up your act

to improve your behavior He used to drink a lot, but he seems to have cleaned up his act.

See also: act, clean, up

clean up your act

  (informal)

to stop doing things that other people do not approve of and start to behave in a more acceptable way There's a very strong anti-press feeling at the moment. A lot of people think it's time they cleaned up their act.

See also: act, clean, up

clean up (one's) act

Slang

To improve one's behavior or performance.

See also: act, clean, up