A new man

The phrase "a new man"!

This idiom is often used to describe someone who has undergone a significant transformation, often in a positive sense. It can imply that the person has changed their behavior, attitude, or habits, and is now a better or improved version of themselves.

For example, someone might say:

The phrase can also be used more broadly to describe someone who has undergone a significant life change, such as a major life event, a move to a new city, or a significant relationship change.

In some cases, the phrase can also be used to describe someone who has become more confident, self-assured, or empowered, as if they have "reborn" themselves in some way.

Overall, "a new man" is a phrase that suggests transformation, growth, and positive change!