Green’s Dictionary of Slang

(US Und.) Chicago.

1904		Number 1500 Life In Sing Sing 261: As I had plenty of the darb I blew away and beat it back to Chic, and framed in with a couple of guns who were working east on the rattlers.
1934		B. Traven Death Ship 85: One does not learn agriculture in Lincoln Avenue in Chic.