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
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug