Green’s Dictionary of Slang

condy’s, the n.

[Condy’s fluid, which, as a disinfectant, presumably ‘deals with any problem’; note Aus. milit. Abdullah with the Condies, an Egyptian menial]

[1940s] (Aus.) advice; usu. in phr. maleesh/mahlish the condy’s, lit. never mind the condy’s, i.e. forget the preliminaries, let’s get on with it.

In compounds

condy boy (n.) [the use of diluted Condy’s fluid as a post-intercourse disinfectant]

[1940s–50s] (Aus.) a jack-of-all-trades employed by a brothel.