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.
ayon kay YoCappy ika-31 ng Marso, 2009
7 Words related to Downadup

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