Green’s Dictionary of Slang

1. (orig. US) a Cadillac.

1929		E. Booth Stealing Through Life 290: There’s a Cad parking there now.
1933		J. Spenser Limey 25: I usually use this Cad.
1944		C.B. Davis Rebellion of Leo McGuire (1953) 162: They’d never in the world connect a lushy goof simple enough to lift the chief’s Cad with me.
1959		C. Himes Crazy Kill 78: I ain’t seen Johnny’s big Cad in nearmost two days.
1965		B. Jackson Get Your Ass in the Water (1974) 206: But what to my wonderin’ eyes would appear? / A ’59 Cad in second gear.
1973		G.V. Higgins Digger’s Game (1981) 9: Out pricing the Cads with all the dough you won.
1982		G.V. Higgins Patriot Game (1985) 172: Can’t picture you in a Cad.
1997		E. Little Another Day in Paradise 21: We’re driving a brand-new Cad.

2. (US black) in fig. use, an attractive woman.

1980

E. Folb Runnin’ Down Some Lines 142: Women dey like a Porsche, a Mercedes or a Cad: [...] Now d’ Cad – da’s my favorite. l’s big, black – and beautiful!