Locksley and Bahgel
I can't believe how long it took me to get this joke.
In the scene where we first see Mel Brooks as the Rabbi, he says:
"Locksley and Bahgel, can't miss."
It finally clicked that it is Lox and Bagels, popular Jewish cusine.
So simple, yet I missed it all these years.
I've even read the trivia page before and still it went over my head.