Top Definition
Z2K
The bug in all of Microsoft's 30G Zunes that caused them to all freeze up at midnight. It fixed itself the next day.
Valis: Dude, my Zune got hit by the Z2K last night!

Theo: Let it die and plug it back in later, I'll work again.
by Theodore Monceaux January 01, 2009
9 Words related to Z2K

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