it means you only live once. at once it was a popular word now it is just made fun of or used ironically.

it can also mean a slang term for sucide

y=you
o=only
l=live
o=once
ironic kid tweeting: "skipping over breakfast #yolo!"

sad kid tweeting: "i dont want to live on this planet any more #yolo"
by boneybut January 04, 2014
Y= You
O= Only
L= Love
O= Oreos
Dude 1 : Man Yolo
Dude 2 : What did I do?
Dude 1 : I said you only love oreos. You eat that every minute
by RadYorkCity December 14, 2013
Mitch Luckers famous quote YOU ONLY LIVE ONCE SO JUST GO FUCKING NUTS stolen by dumbasses everywhere and called it yolo
YOU ONLY LIVE ONCE SO JUST GO FUCKING NUTS -Mitch Lucker yolo
by ILOVEMITCHFUKINGLUCKER November 16, 2013
Acronym for "You Oughta Look Out."

What you say when you make the right choice and stay alive another day.
Man: I just built a bomb shelter basement with titanium walls to protect myself from potential terrorist attacks! YOLO!
by BleachCola October 26, 2013
What you should DEFINITELY say after every action you perform.
Driving over the speed limit... YOLO
Forgot to wear a condom... YOLO
Calculus exam tomorrow... YOLO
by Nytesdawn February 06, 2013
Yolo doesn't mean having sex, it doesn't mean doing drugs, it doesn't mean anything else that is considered uncivilized.

Yolo is doing something that really matters in your life, something that will actually make you a somebody, something that will change your life.

Life is shorter than we think, don't waste it.
You only live once. ;)
Yolo, don't be stupid. Do something in you life.
by Lang Li December 07, 2012
YOLO: Acronym for You Only Live Once. Used in many situations ranging from encouraging something stupid or by douche bags in general.
Me: Hey should I have sex with that clearly STD infested hooker who also might be a transvestite?

Friend: Dude YOLO!
by Hookers4us July 26, 2012

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