BBG was walking around pointing to people saying, "Jew! Jew!", laughing, and then running away. I could not figure out why she was doing this. Had she been around my anti-Semite relatives? Was she recalling the Jesus of Nazareth movie that we watched?
After careful observation, I figured out what triggered this new-found expression. It WAS a movie! But not one with any Jews (well, that I know of). It was Star Wars. BBG was pointing her finger to resemble a blaster and "shooting" people. "Jew! Jew!" is the blaster sound effect (say it out loud while pretending to shoot someone.)
Now that you know, you too can point to people and yell "Jew!", then laugh and run away.