1. verb To transform oneself in a significant way. The phrase can be applied to positive changes in one's appearance, but usually focuses more on one's successes in life and increased self-confidence. Modeled on the phrase "grow up." I feel like I really glowed up this year because I started a great new job, ended a toxic relationship, and became comfortable with being single.

2. noun A significant self-transformation. The phrase can be applied to positive changes in one's appearance, but usually focuses more on one's successes in life and increased self-confidence. I feel like I really had a glow up this year because I started a great new job, ended a toxic relationship, and became comfortable with being single.