Green’s Dictionary of Slang

1. (US Und.) a prostitute who works without a pimp.

1935		A.J. Pollock Und. Speaks.
1939		D. Maurer ‘Prostitutes and Criminal Argots’ in Lang. Und. (1981) 116/2: orphan. A prostitute without a pimp.

2. (US) a discontinued model of a motor vehicle, a run-down, dilapidated motorcar.

1942		Berrey & Van den Bark Amer. Thes. Sl.
1948		Mencken Amer. Lang. Supplement II.
2001		Orlando Sentinel 25 Jan. F1: How many Daihatsus, Peugeots, Sterlings and Yugos do you see on the roads today? Very few, partially because replacement parts are expensive and hard to find, and no one wants to work on those orphans.