Oldmageddon 

The end of the world as a result of Baby Boomers reaching senior status and destroying society due to a failure to realize their increasing inability to properly function in many ways; like driving a car, for instance.

Oldmageddon surfaces every time an old person gets confused and drives their car into a crowded market or off a cliff.

Oldmageddon by BVick February 4, 2010

Osamageddon

The downfall of Osama bin Laden's reign of terror.

Tonight was Osamageddon and the death of Osama bin Laden

Osamageddon by Type2GenomeManiac November 13, 2014

Obomageddon 

The final resultant battle (humor) between supporters of 08 presidential candidate Obama and his opponents. The fire and brimstone left behind causing total devastation of the US political scene.

Wow, if he looses there's goiging to be Obomageddon in the streets.
IF he wins there'll be total Obomageddon in the coffers.

Obomageddon by Fish Finder January 28, 2008

Oilmageddon

An uncontrolled cataclysmic oil spill event.

The BP Gulf oil spill is the coming of oilmageddon.

Oilmageddon by drg1 June 29, 2010

Obamageddon 

January 20th, 2009. Obama's inauguration day, also the beginning of the end of the world as we know it.

Person #1 - What are you doing today?

Person #2 - I'm buying guns and ammo by the truck load!

Person #1 - What? Why?

Person #2 - It's Obamageddon, duh!

Person #1 - We're fucked!!!

Obamageddon by dropkickallies January 20, 2009

Obamageddon 

Synonym for Barackalypse.

Prepare for Obamageddon!

Obamageddon by nssone January 20, 2009

Obamageddon 

The coming hyperinflationary period which will also be known as the Great Depression II which actually started in 2008 with the stock market crash and will continue for possibly more than a decade. Symptoms of Obamaggedon include but are not limited to:
hyperinflation
high unemployment
fiat currency failure
soaring gold/silver prices
99.9% of the people out there having no clue whatsoever.

Bob: The economy is recovering nicely, the worst is over now.
Me: No way, Obamageddon has just begun!

Obamageddon by Alonius February 17, 2010