[live] on the edge

to have a life that involves one facing a lot of danger and taking great risks

The idiom "live on the edge" likely originated from the idea of taking risks, living a life filled with excitement, and not adhering to conventional norms or safety. It is used to imply living in a daring or adventurous manner, often with a disregard for potential consequences.

He's the kind of person who loves to live on the edge, constantly seeking new adrenaline-pumping adventures.
Their decision to quit their stable jobs and travel the world is a perfect example of living on the edge.
She lives on the edge by participating in extreme sports like skydiving and rock climbing.
Choosing a career in the entertainment industry is like living on the edge, with its unpredictable ups and downs.
Driving at such high speeds on icy roads is living on the edge; it's a recipe for disaster.