Though I must confess to having used "Japs" in my notes for my class on WWII this past semester. But that was pretty much purely for the purposes of taking notes on the fly...gotta write fast, lol!

LOL! I say, 'Japs', 'Chinks', 'Viets' all the time, thinking it was like an abbreviation for 'Japanese', 'Chinese' and 'Vietnamese' ya know? ]

This is interesting ;)