1 definition by Blue Rose 2012

Acronym for: You're only young once.

Do things while you are young and can still get away with them. Don't settle down until after your millionth drink/smoke.
Wanna go out?
We work tomorrow at 9am.
What are you, 70? Let's go!
Alright, YOYO!
by Blue Rose 2012 July 20, 2012
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