When a society at large knows more about pop-culture than their own history.

One of the many signs of the apocalypse.
Friend: Most Americans can't name the last six presidents, but they can tell you the names of the last six American Idol winners.

Me: I know. It's the effing popocalypse.
by canned hiss March 10, 2009
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A speculative model of the end of the world, in which the end of the world is wrought via the dominant culture totally satisfying everyone's desires.
Heroin and Katy Perry; they're just two different paths to the popocalypse.
by The Armageddon Club July 7, 2012
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The pandemonium created when the Pope comes to a city bringing everything in the city to a grinding halt for several days to allow for pilgrims to witness his holiness.
The city of Philadelphia will be inexcusable by rail, bus and auto while the popocalypse occurs.
by ChipF August 29, 2015
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