Green’s Dictionary of Slang

(US black/campus/teen) ‘out of control’; also used to describe the public housing projects in the Fillmore district of San Francisco.

1996		Eble Campus Sl. Mar. 6: o.c. – behavior that is inappropriate, not normal, excessive: ‘Girl, you’re laughing too much. You’re O.C.’.
2000		Eble Campus Sl. Spring 5: o.o.c. – crazy wild.
2003		A. Newitz ‘Bay Area Sl.’ on Berkeley University Amer. Studies 102 Course Website 🌐 O.C. – “Outta Control” public housing projects in the Fillmore of San Francisco.