Green’s Dictionary of Slang

(US) a fool, a dullard, a idiot.

1914		E. O’Neill The Movie Man in Ten ‘Lost’ Plays (1995) 200: (He commences to sing) [...] Kill it, kill it, you bone!
1919		Van Loan ‘The National Commission Decides’ in Score by Innings (2004) 294: That crack just shows what a natural ‘bone’ you are, Sam!
1944		J. Cary Horse’s Mouth (1948) 108: Look at the floor, you old bone. You’re wet to the skin.