Top Definition
Another name used for Conficker. It's a virus that's supposedly taking into effect on April 1st, 2009. It could be a deadly worm, or the biggest April Fool's joke in years.
Virus scan your computer to make sure you don't have Downadup.
by YoCappy March 31, 2009
7 Words related to Downadup

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.

×