Top Definition
the phenomenon of upgrading to a new operating system on the Mac, where all your programs become obsolete or outdated, and you are forced to spend more money than you ever thought to bring your existing programs up to "snuff' to work on the new OS.
"I was so excited about upgrading to the new Leopard until I realized all my other programs which I use daily suffered from applesolesence...bummer!"
by Frank Film December 19, 2007
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