poopacalypse 

Imminent and terrifying event of horrific pooping, that will result in great pain.

"Hey John, wanna come to the movies?"

"No, I can't about to have a poopacalypse!"

poopacalypse by Brikloss December 30, 2008

Popocalypse 

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.

Popocalypse by canned hiss March 9, 2009

Popocalypse 

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.

Popocalypse by The Armageddon Club July 8, 2012

Popeacolypse 

A term referring to our modern era of popes. With the resignation of Pope Benedict were are now in the era of the final Pope (per the prophecy of the popes, attributed to Saint Malachy, which holds that this new pope John the Roman will be the last pope, and the judgement). Thus we are in the Popeacoylpse, the "final days" of the Pontiff.

CNN Announcer "This just in from the Vatican, a frontrunner in the papal succession race has emerged, Giovanni Agerrett. Is this a sign of the Popeacolypse?"
"No man, I don't believe in the Popeacolypse. I am still waiting on the Mayan thing to pay out."

Popeacolypse by Rabban February 11, 2013

Popocalypse 

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.

Popocalypse by ChipF October 11, 2015