Green’s Dictionary of Slang

1. (US Und.) a person with tuberculosis, a consumptive.

1904

‘Number 1500’ Life In Sing Sing 247: Conny. a consumptive.

2. (Aus./US) a tram or bus conductor.

1904		‘Number 1500’ Life In Sing Sing 260: The gun had just lifted his mitt when the conny fell to the graft and tipped the sucker to the lay.
1929		Mail (Adelaide) 23 Mar. 34/4: Some women open two bags and one purse, before [...] they hand the ‘connie’ whatever coin their delving digits first make contact with.
1933		J.T. Farrell Gas-House McGinty 81: He hoped that all these people looking at him [...] didn’t think that he was trying to gyp the connie out of a lousy nickel!
1937		Mirror (Perth) 17 July 11/4: A tap on the shoulder seemed to annoy him, and he babbled something to the ‘conny’, indicating that he did not understand.
1943		Baker Popular Dict. Aus. Sl. (2nd edn).
1943		Mirror (Perth) 17 Apr.2: A Guard of Honor for Connie Bride [...] The romance sprouted, grew and ‘blossomed to the rattle of trams’.
1956		Argus (Melbourne) 3 Feb. 4/4: in peak-hour heat she collected more fares in a crowded tram than two male connies.
1965		B. Wannan Fair Go, Spinner 203: The connie came back along the car.
1978		Australian 1 Sept. 1: The entire tramways network in Melbourne could come to a halt by the weekend because a conductress — or ‘connie’ — refuses to join the union [GAW4].
1993		Aus. Word Map 🌐 connie [...] a bus or tram conductor.

3. (S.Afr. gay) a condom.

2003

K. Cage Gayle.

4. see coonie n.