Top Definition
The operating system designed by Bill Cosby and released in late 2008. This operating system is Unix based and it is distributed by CosbySoft. Bill Cosby has been a computer programmer ever since he started to eat Jell-o pudding.
CosbyOS is a great operating system, it's faster and more stable than Windows and Linux and you can play lots of cool games on it like SimTaco. The only thing that sucks about CosbyOS is that you have to make Bill Cosby Jell-o pudding every 5 minutes when you use it.
by Da Wizard Of OZ June 03, 2009

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