Years ago, when I was a member rep on Prodigy, we had a problem with newcomers, mostly young kids, telling bigoted jokes. I can't say racist, because they included other groups as well. The jokes weren't too great to begin with as they focused more on insulting an ethnic group. The board leaders liked the idea I instituted. Instead of picking on any individual group, I created one for ethnic jokes. Al Capp (Lil Abner's creator) had come up with the Slobovians that was used for decades by other publications, but I felt that was too Eurocentric. I decided to start calling the characters EGgs. It stood for Ethnic Ggroup. Yes, double g. I only bring this up because of the Batman Jingle Bells parody. The part where Robin laid an EGg.
Now. Whenever you hear that parody, you will picture the Boy Wonder blundering through his first experience in boinking. And your mind will fill in the ethnic group.