He decided to turn over a new leaf and quit smoking.
turn over a new leaf
idiomTo engage in self-improvement; to begin a good habit or shed a bad habit.
Origin
disputed originFigurative by the same metaphor as with turn the page.
After getting a warning at work, she turned over a new leaf and started arriving on time every day.
Fresh out of prison and determined to rebuild his life, he turned over a new leaf, cutting ties with his old crowd and enrolling in night classes.
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Buggins's turn
A humorous, disparaging term for the appointment of a person by rotation or promotion, on the basis of length of service (it being that person's "turn") rather than merit or level of qualification.
- 02
dawn of a new day
A new beginning; a fresh start; an important, promising turning point.
- 03
emperor's new clothes
Something obvious and embarrassing that is politely ignored or that goes unacknowledged.
- 04
good turn
A good deed; a thoughtful or selfless act.
- 05
left turn
An unexpected change from the way things seemed to be going.
- 06
new dawn
A new beginning; a fresh start; an important, promising turning point.
- 07
new hotness
The new popular trend; the latest and greatest thing.
- 08
new kid in town
Synonym of new kid on the block.