This is actually the origin of the "kike" slur. When Jewish immigrants got off the boat at Ellis Island back in the day, they had to take a citizenship test, and part of the test involved questions like "draw a + through the third word of this sentence" to show they understood sentence structure in English. The Jews instead would always circle the correct answer. When asked "what is this?" their answer was "kikel", the yiddish word for circle. It was their culture to never draw a + sign because it resembled a Christian cross. Obviously the mostly Christian US workers at Ellis Island back then got the lore behind this and weren't real happy about the diss, and started talking about Jewish immigrants in the vein of "oh boy, we got another boatload of kikels in today..." And the term eventually got shortened to "kike" as a reference to these stuck up Jews who hated Christians so much.