It's "hipster" talk. Heard quite a few times at Glendale's "Rare Records," land of thousands of rare jazz records, circa 1977—though doubtless used more in days gone by. On Aug 5, 2009, at 6:57 AM, Carvill, John wrote: > Welcome Stephen. > > Dunno about other books, but he did use copacetic in Vineland: