Green’s Dictionary of Slang

(orig. Aus.) a generic term for any small café; a convenience store.

1935		D. Lamson We Who Are About to Die 92: In variety and quality it corresponds to the meals you buy for 50 cents at the Greek’s.
1949		R. Park Poor Man’s Orange 43: I’ll go and pick up some tucker at the Greek’s!
1955		D. Niland Shiralee 41: He went into the Greek’s and sat down in a cubicle.
1982		N. Keesing Lily on the Dustbin 115: Greek families, who traditionally cooked the steak and eggs in countless country town cafés, known as ‘th’ Greeks’.
2021		Betoota-isms 187: The Greeks [...] The Greeks [...] 1. Local independent supermarket that doubles as a cafe or milk bar.