YOLO

abbreviation

ˈyō-(ˌ)lō 

you only live once

—used often as an expression to justify or support doing something without concern for the possible negative consequences

I'm not stressing about sullying a legacy that's far from spotless as it is. YOLO!

—Ben Lindbergh

The most common habit among my friends is making big, impulsive purchases on credit and worrying about them later. … When asked what motivates these purchases, the answers I got all had a similar YOLO attitude.

—Kofi Mframa

[Professor Jonathan] Zittrain said the "YOLO model" is driven by founders and VCs [=venture capitalists] who will try anything quickly: Launch an idea, see if it sticks, and if the company collapses, just move on to the next startup. If it succeeds, he said, they cash in.

—Lakshmi Varanasi