The Jewish equivalent of "Fo Shizzle My Nizzle." Where "nizzle" is based off of nigger, "kikkle" is based off of kike. Kikkle can also be spelled "kikel", which is Yiddish for "circle," in which case the phrase would mean "For sure, my circle."
-Yo Mordechai, you going to temple tonight?
-Fo shikkle my kikkle!