Green’s Dictionary of Slang

(orig. US) Jewish.

1951		(con. 1920) S. Longstreet Pedlocks (1971) 273: As for you, Kikey Ikey, you’re lucky they let you sit down with white men.
1974		(con. 1945) E. Thompson Tattoo (1977) 356: He’d turn back his own mother if he couldn’t see his kikey face in her shoes.