Define You Only Yolo Once Meaning

You Only YOLO Once
You only you only live once once. A common mistake made by people who are being a bit stupid, usually in a stressful or worried situation, causing people to forget what they were saying.

*skydiving*

Fred : Come on Bob. You've got to jump.
Bob: Well, ok then. I mean, you only YOLO once don't you.
Fred: yes...
By Fayre