It's a colloquial term from the Eastern Seaboard of Australia, to distribe a Japanese branded domestic air conditioning unit installed in some residences in the 1990's, who are best described as being privileged.
Darling, I can't stand this summer heat at Christmas. Pack a box of jatz, and I'll get the cubed cheese and cabanosi. We're off to the Jone's place as they have the Hibadishi cranked.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)