Green’s Dictionary of Slang

1. (Aus.) a boorish, loutish, unsophisticated, ultra-nationalistic Australian, whose rise, and celebration, coincided with Gough Whitlam’s Labour government (1972–5).

[1952		J. Cleary Sundowners 151: ‘Keep going, Ocker,’ Bluey said. ‘We didn’t know you were a philosopher.’].
1974–5		B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 123: Don’t talk to your father like that you foul-mouth ocker!
1976		Aus. Women’s Wkly 35May 3/3: The okker showed up backstage .
1977		Aus. Women’s Wkly 30 Nov. 14/3: Norm [...] The ocker who spends most of his life in an easy chair drinking from a can and with his eyes glued to TV sport.
1985		Tracks (Aus.) Oct. 87: Like any normal, sporty kind of girl my mouth started watering and, after bolting to the shop to buy one [a pie], I was about to take my first bite when I heard this cry of bushpig. Then one of the guys came up to me and said, ‘God – you’re the biggest ocker I’ve ever seen. Sure you’re going to eat a pie.’ [Moore 1993].
1999		G. Seal Lingo 121: Sometime during the late 1960s and early 1970s a term long used in Australia as a nickname abbreviation for Oscar became the descriptor for the crude, grog-sodden, beer-gutted sort of bloke who lived next door. The ocker is generally said to have obtruded himself into public view through the popular satirical television series ‘The Mavis Bramston Show’ (1965–68) in the form of a character played by the late Ron Frazer. By the early 1970s ocker was threatening bloke as a central Lingoism.
2003		McGill Reed Dict. of N.Z. Sl. 146: Ocker An Australian.
2006		C. Marriner Southern Style 10: I fancied a drinking buddy and a pub session as much as any Ocker in a foreign city.
2010		L. Redhead Thrill City [ebook] He was wellspoken. Educated with just a hint of ocker.

2. in attrib. use fo sense 1.

1976		Aus. Women’s Wkly 17 Nov. 4/2: She must certainly not have an ‘okker’ accent.
1979		Aus. Women’s Wkly 30 May 14/2: He planned most of the more controversial selling campaigns, including the ‘okker trend’.

3. anyone seen as boorishly nationalistic.

1968		Kings Cross Whisper (Sydney) li 3/3: This was the theme in the winter showing of fashion designer Fred ‘Ocker’ Smith.
1989		J. Hibberd Memoirs of an Old Bastard 75: Penelope wished to know whether Padlock fitted the description of ‘an ocker’.

4. Australian English.

1977		Aus. Women’s Wkly 30 Nov. 49/1: Fluent Okker is more my line these days.
1996		Penguin Bk of More Aus. Jokes 346: ‘Fish and Chips,’ he demanded of the shopkeeper in his best Ocker.