It's a Yiddish joke that made me spew coffee over the keyboard.
"Kike" is a term meaning "jew" in the same way that "Ni**er" means "African American".
"Dradel" is a spinning top used in the jewish holiday of Hanukkah.
The origin of the word "Kike" is interesting.
In the late 1800s, many poor jews emigrated to the USA. Not knowing to read and write in English, they were told to sign their names in the immigration documents with a cross. Not wishing to sign with a christian symbol, they signed instead with a kikel, or circle in Yiddish. That became a prejorative term, as in, "here's another bunch of those kikels". From there it became "kike".
A circle is a near perfect thing. So when you call someone a KIKE, you're saying they're NEARLY PERFECT.