I like to say 'cubicle riff-raff', but I often get in trouble for my colorful euphemisms
other great government worker words:
DMV rejects
9-to-5ers
cubicle dwellers
pencil pushers
etc...
Really, in the US, it's rarely seen as an accomplishment to get a government job. In fact, there's a stygma associated with it. Going to work for the government in the US is often the last resort.
There's a saying where I come from.. if you can't cut it in the private sector, work for the government.