Green’s Dictionary of Slang

cashie n.

also cashy

(Aus.) a cash-in-hand job (that pays no tax).

Google Groups: nz.general 21 July 🌐 Ask if the guy will do a cash job, he should knock 12.5% of the price for a cashie also probably more of a chance of getting a concrete layer to do your job as these guys if they are any good would be clearing around a grand a day and like anybody want to pay as less tax as possible.
Google Groups: aus.cars 10 May 🌐 What you’re talking about, ‘cashies,’ is *illegal*, and it’s not something you can sustain to any great degree without drawing attention to yourself.
Google Groups: aus.cars 5 Sept. 🌐 Has *any* plumber in the history of mankind not done a cashy?
thedailyblog.co.nz 6 May 🌐 ‘Gazza’ then gets a letter from IRD saying he’s being audited because he may have done a few ‘cashies’ sometime in the last few years when things were a bit lean after the GFC.
Facebook: Tradie Mayhem 11 Mar. 🌐 Any other plumbers knocking out a few cashies this weekend?