Green’s Dictionary of Slang

chockers (with) phr.

(Aus.) full of.

1985		B. Humphries Traveller’s Tool 26: The pews were chockers with a mob of my cobbers from New Guinea days.
1992		K. Lette Llama Parlour 196: The place is chockers with nude car washes and auto sucks and jacuzzi orgies and — I dunno.
2007		S. Maloney Sucked In 129: Archeon was a popular Sunday brunch spot and business was brisk. The place was chockers.
2013		‘Australia Day’ ad for MacDonalds cited crikey.com.au 10 Jan. 🌐 Porko ’n’ Simmo in a ute that’s chockers.

In phrases

get chockers (v.)

to have sexual intercourse.

1963–74

B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 110: It’s bloody horrible if youse sometimes get chockers with your sheilah patients.