Thought you might like to know that Wikipedia has a 19 page article detailing every known instance of U.S. Army slang expressions since World War One:
http://en.wikipedia.org/wiki/List_of_U.S._Army_acronyms_and_expressions
This should come in handy for Spacemaster campaigns. Some of these expressions are quite colorful, so don't follow the link if you are easily offended.