A portmanteau of "Karma" and "Armageddon." References "shit hitting the fan" in an extreme way while acknowledging
one's contributions to that event.
Specifically, when all the (usually unpleasant) stuff you've done comes back to you at once.
The only way out is to take your licking, batten the hatches, pull back, and deal with the stuff
one by
one.
Man, my license was revoked for not paying those speeding tickets, my car got the boot from those unpaid parking tickets, bill collectors are calling,
work's a
mess from my calling in "sick," and my
girlfriend found out about the affair when the other girl stopped by our place... Argh, it's karmageddon!