Green’s Dictionary of Slang

chromo n.

[SE chromolithograph, a picture printed in colours from stone; although sense 4 is uniquely Aus.; the image equates an over-dressed, over-made-up prostitute with a chromolithograph – both are colourful and flashy, but neither resembles natural beauty]

1. (US) any form of counterfeit financial document, e.g. a bond, a share certificate.

[US]A. Pinkerton Thirty Years a Detective 77: There’s some crooked stuff [...] If you have any doubt about the ‘chromos’ being negotiable and all right anywhere on the Continent, why, we’ll just go out and try them.

2. (US campus) something above average.

[US]W.C. Gore Student Sl. in Cohen (1997) 12: chromo n. 1. Something better than the average. ‘That essay is a chromo.’ [This use probably dates from the time (about twenty-five or thirty years ago) when chromos were somewhat rare and thought to be beautiful].

3. an ugly, distasteful person.

[US]Daily L.A. Herald 13 Aug. 2/3: He calls a beautiful woman a ‘lalla,’ a ‘dandy,’ or a ‘corker,’ and an ugly one a ‘chromo’.
[US]W.C. Gore Student Sl. in Cohen (1997) 12: chromo n. […] 2. A homely person. 3. A vague term of derision.
[US]W.M. Raine Bucky O’Connor (1910) 216: She’s a princess, Cork [...] Makes my Epitaph gyurl look like a chromo beside her.
[US]J. Lait ‘Second from the End’ in Beef, Iron and Wine (1917) 193: A weather-beaten old society chromo.
[US]T.A. Dorgan in Zwilling TAD Lex. (1993) 46: (IS: Playing the duck as the chromo of the party gets ready to be escorted home) I don’t take horseface — no siree!
[US]D. Runyon ‘The Old Doll’s House’ in Runyon on Broadway (1954) 71: No newspaper dast to say she looks like an old chromo.
[Aus]T.A.G. Hungerford Riverslake 98: What an old chromo!

4. (Aus., also cromo, crow) a prostitute.

[UK]J. Curtis You’re in the Racket, Too 187: There might be quite a chance of having a right-looking cromo give him a tumble.
[Aus]L. Glassop We Were the Rats 103: Not bad for chromos are they?
[Aus]S.J. Baker in Sun. Herald (Sydney) 8 June 9/2: There’s [...] the ‘crow’ or ‘chromo,’ street woman, the ‘bludger,’ who exploits street women for financial ends.
[Aus]N. Pulliam I Travelled a Lonely Land (1957) 230/1: band (cake, cromo, low-heel) – a prostitute.
[Aus]D. Niland Big Smoke 152: He remembered the few harlots Big Lew had brought up there, and he remembered him like that when he brought up that old chromo from Campbell Street.
[Aus]J. Iggulden Storms of Summer 297: Some rotten poxy bitch of a chromo dobbed them in.
[Aus] ‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxiii 4/4: chromo: A prostitute. From the two words Crow and Moll.
[Aus]T. Ronan Mighty Men on Horseback 65: He butted in on some bloke who had a chromo in tow.
[UK]J. Morton Lowspeak.