Most people around us usually get it so isn't really a "secret" language, but my wife and I are big Simpsons fans so we talk in quotes all the time.
One that gets a lot of play is "I'm going... to... stalk... Lenny and Carl" for when we're going somewhere but really sure what we're going to do
That is a misrepresentation of what happened. They were told he fought the Russians. They weren't told he was a Nazi. That came to light after