According to "McDonald's Has Beef with the Oxford English Dictionary" McDonalds is trying to get "McJob" removed from the OED, but they might just be going about it the wrong way.
From the article:
As a result, the Illinois-based company is pumping out an advertising blitz with posters at over 1,200 restaurants that play up "the positive aspects of working for McDonald's," complete with the snappy catch-phrase, "Not bad for a McJob."Since they're using the McJob word themselves, it only adds legitimacy to the term as being in common usage, and a word in common usage should, QED, be in the OED. :-)