You Only Live Once It's an internet slang term for when when you're about to do something that's basically colossally stupid, but if you pull it off it's awesome. In my case, I managed to get the killing blow on Phogoth with Fist of Havoc on both the Nightfall and weekly back to back. Odds are I was going to end up getting horribly and embarassingly killed by Phogoth, hence the stupidity, but since I pulled it off it came out pretty awesome. Thus I felt it appropriate to be a bit juvenile in my post and repurposing the term YOLO to describe what I did. I know it's kind of childish, but this is an internet forum. It lends itself towards such silliness because it's fun and harmless =)