Best definition
The year 2012, when according to a lot of delusional no-life geeks and patchouli-stinking hippies, the world will either be

destroyed by catastrophes or we will all be transformed into Energy Beings, or something. They can’t seem to get their stories straight. Supposedly based on the Mayan calendar – one of its long measurement periods ends that year, big deal.

Did you see Ed spam the whole office with that Y2.012K website? What a delusional no-life geek!