beerpocalypse 

A catastrophe brought about by failed barley crops due to climate change limiting the availability of beer and causing massive price increases.

Earl might start believing in climate change after the beerpocalypse.

beerpocalypse by Kenoir October 15, 2018

bearpocalypse 

The day, as prophesied by the noted clairvoyant, Urstradamus, when bears will rise from their underground metropolis and destroy human civilization once and for all. According to prophecy none will be spared but the reverent.

The bearpocalypse is nigh! Repent or don't; either way you're going to be mauled to death, pitiful biped.

bearpocalypse by HobieKopek April 20, 2007

Bieberpocalypse

Portmanteau of "Bieber" and "apocalypse"

The ensuing mass of chaos, mayhem and hell that is created when teenage girls obsessed with Justin Bieber turn into mutant, degenerate, blood-sucking zombie fiends.

The most commonly afflicted are preppy bitches that obsess over him.

While such a pandemic and cataclysmic event could probably be solved through peaceful negotiation and proper application of heavy metal,

(Slayer, Megadeth =/= Justin Bieber)

the most effective choice would be sharp and swift retaliation through the use of firearms. Pistol calibers offer the most portability and 30mm offer the most power. The most logical choice would be however a 5.56x45 or 7.62x51mm assault rifle, applied to either the forehead or base of skull.

Consult your nearest metalhead, headbanger, or skinhead for Bieberpocalypse preparedness advice.

Jim: Dude, did you just see that chick? She used to listen to Justin Bieber and now she's a fucking zombie!

Bob: Holy shit bro, it's the Bieberpocalypse.

Andre: Both you niggas get in my car. I got a few Metallica CDs and a Tec-9. Ain't no zombie taken over my KFC!

Bieberpocalypse by Magnum Mayhem December 1, 2010