cleans up one's act

Stops bad behavior

To clean up one's act is to improve one's behavior, habits, or performance after a period of misconduct or poor results.

The phrase suggests someone has been acting badly—whether through unprofessional conduct, substance abuse, or general irresponsibility—and is now making a deliberate effort to reform.

After his third warning from HR, he finally cleaned up his act.

The expression often implies external pressure or consequences prompted the change.

Related

goal-setting · community service · making amends · accountability · moral compass · mindfulness · forgiveness · conscience · integrity · honesty · second chance · fresh start · straight and narrow · productivity · self-awareness · ethical behavior · sobriety · empathy

Opposites
behavioral reform

cleans up one's actfalls off the wagon

Abandons recovery, resumes drinking

backslides · relapses · goes downhill · falls apart · deteriorates

moral/ethical trajectory

cleans up one's actfalls from grace

Suffers sudden disgrace

goes bad · sells out · degenerates

Family

clean, cleans, cleaned, cleaning, cleaner, cleaners, cleanest, cleanly, cleanliness

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G