YOLO

So a while back I was talking to a guy and he was a few years younger than me so I asked him, "What does YOLO mean?"  He thought for a second and then said, "you know... I don't know."  So I pulled out my smartphone and went to none other than the +Urban Dictionary and looked it up.  "Oh hey," I said.  "It means 'you only live once.'  To be honest I thought it was some Hispanic thing."  Now when this guy and I see each other at work we sometimes randomly yell out, "YOLO!"