Apocalypters 

Usually used to describe a group, or mass of people that for some reason are convinced a certain date is the day of the Apocalypse. They are so far 100% consistent at being wrong.

Did you see those bible tumpers on the corner?
You mean the dumb apocalypters talking about the day of judgement? They are there every week man.

Apocalypters by B A Clay June 7, 2011

Apocalyptist 

One who believes that the only solution to most, if not all, of the world's biggest problems is a catastrophic event of epic proportions.

Like their Republican counter-parts in 2008, Democratic Apocalyptists began praying for a Zombie apocalypse after the 2010 mid-term elections.

Apocalyptist by Dr. Whitmire November 10, 2010

A - Z of Apocalypses 

So many to choose from! One is bound to come true.
A – Ape Uprising
B – Black Hole
C – Collision
D – Dinosaurs Return
E – Everyone Dissapears
F – Food Fights Back
G – Gravity Fails
H – Hollacaust Again
I – Insect Overlords
J – Jesus Returns
K – Killer Bees
L – Lemming Syndrome
M – Machine War
N – Nuke
O – Ovary Expiration
P – Pandemic
Q – Quake
R – Rapture
S – Solar Flare
T – Triffids
U – UFO Strike
V – Volcanos
W – Water World
X – Xenophobia
Y – You’re in teh Matrix
Z – Zombies

When Bob bought his Big Mac at Mcdonalds, he was surpised when he went to take a bite, it took a bite of him. The end. (of the world) (Food fights back, from F, "A - Z of Apocalypses"

A - Z of Apocalypses by .:Stormie:. October 16, 2009

apocalyptard 

noun - refers to believers in any lame-brained end-of-the-world theory, particularly those ascribing to the ridiculous 2012 hypothesis.

Glenn Beck, hero and champion to myself and all other apocalyptards, explained how the world will end on a chalkbaord today.

apocalyptard by Le Haineux April 23, 2011

apocalypturd 

Dismissive or derogatory term for doomsday or apocalypse scenarios, and of groups, people or media focused around them. May also encompass conspiracy theories. Usually indicates a self-defeating level of hyperbole or histrionics on the subject's part.

That disaster movie was a pile of apocalypturds.

apocalypturd by One of those things March 2, 2010

Apocalyptus 

School sucks

Person X: how's life?
Person Y: grrr... apocalyptus!

Apocalyptus by reeeeeally bored kid March 25, 2009