cabby
n.— «Seconds after positioning myself on a polished brass railing, I was approached by a guy offering “cabby” and holding a tightly packed tab of white powder. Cabby, apparently, is short for “cabbage,” which, I am told, is the inexplicable street term for crack.» —“Dirty Digs” by Robert La Franco Los Angeles Downtown News Sept. 18, 2006. (source: Double-Tongued Dictionary)