Green’s Dictionary of Slang

norks n.

also norcs, norgies, norgs, nawks
[origin unknown; Sidney J. Baker's suggested derivation from the Norco Co-operative Ltd of NSW brand of butter, featuring a cow’s udder on its labels, is widely repeated but ultimately lacks any substantiating evidence]

(Aus.) the breasts.

[UK]C. Rohan Delinquents 157: Hello, honey, that sweater—one deep breath and your norks will be in my soup.
[Aus]Baker Aus. Lang. (2nd edn) x. 215: Nork, a female breast, usually in plural. (Ex Norco Co-operative Ltd., a butter manufacturer in N.S.W.). The form norg is reported from Melbourne.
[Aus]J. Hibberd White with Wire Wheels (1973) 215: Whether or not you are breast-fed has nothing to do with the size of your mother’s norks.
I. Hamilton Thrill Machine 17: She’s only a body, all she’s got is big norks.
[Aus]B. Humphries Traveller’s Tool 111: I organise a few nice little Antipodean horn-bags who don’t mind flashing their norks in public.
[Aus]T. Winton Human Torpedo 28: Jugs, norks, knockers, boobs and bosoms.
[Aus]S. Dawson Aussie Sl. 76: norks or norgies: Breasts.
[US]People (Sydney) 5 July 2/1: Here she was with tits! And a cute little muff! Proudly proclaiming, ‘I am woman, see my norks!’.
OnLine Dict. of Playground Sl. 🌐 norks n. breasts.
Large (Melbourne) 14 Aug. 6/1: ‘Check out the norks on that sheila!’.
[Aus]Picture (Sydney) Feb. 18/2: And one flashed her norgs, making his day.
BBM (Sydney) 14 Aug. 6/1: But while huge norks look and feel great to most red-blooded males - they don’t look or feel so great on red-blooded males.
[Aus]T. Spicer Good Girl Stripped Bare 18: I [...] hunch too hide the ‘norcs’ bursting out of my Berlei [...] Norco is a dairy company and anyone with big boobs is compared with a cow.
[UK]P. Baker Fabulosa 295/2: nawks bosom.
Twitter 3 Oct. 🌐 I asked a male comedian not to post ‘cracking norks’ alongside this book cover.

In derivatives

norgy (adj.)

(soft-core) pornographic, i.e. featuring illustrations of naked female breasts.

[Aus]J. Spencer Cross Section 13: We walked together through the Cross, past all the things that were new to me, the doors of the strip joints and the norgy photos, old ladies standing and letching and pretending to be shocked.