Top Definition
Stop being an old fuddy-duddy.
Why do you have to be in bed every night by 8pm? Young-up!
#old #young #mature #young up #yung
by Michael Carne September 22, 2006
5 Words related to Young-up
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×