Buzzernaut 

n. Anyone using (i.e. "buzzing") on the Google Buzz social networking platform.

Person 1: Are you gonna drop the buzzernaut?

Buzzernaut by @heyart February 14, 2010

Buggernaut 

The uunstoppable force of buggery. Mostly used in Brittain. Once a nickname of English pop-star, George Michaels. Applicable in any case where the buggery continues despite numerous pleas for cessation.

Great Scott! It's a rampaging BUGGERNAUT!

Buggernaut by The Insidious Dr. Naughty July 18, 2003