- An acronym for You Obviously Love Oreos and who doesnt love oreos. "Ex. man you going hard on them oreos (other guy) yeah "YOLO!"
- You Only Live Once. Ex: The bank is closed. I should rob it. "YOLO!"
- No definition; used out of stupidity or used by people with Tourettes Syndrome. Ex: Someone is giving a eulogy at a funeral. "YOLO!"
- Same as definition 2, but its use is for annoyance. Ex: I took a shit. "YOLO!"