Green’s Dictionary of Slang

1. a cheap prostitute.

1967

L. Riley Kings Cross Racket 106: [H]e though of the uncouth, common, broken down sluts who had featured momentarily at the studio in their careers and were destined to end up cheap flogs in the brothels on the waterfront.

2. a speedy drive; a ‘hoon’.

1968		Canberra Times (ACT) 6 Apr. 28/1: [advert] 1966 and 67 HR Holden Spl Sedans. Flash off for a flog in the Flintstone’s Flyers.
2006		Aus. Motorcycle News xxii 26/3: I took one for a flog. Man, what a sick puppy this thing is. Fully sick, maaaate.

3. an act of male masturbation, thus v. have a flog, to masturbate.

1985		B. Arndt Aus. Way of Sex 12: Having a flog, or flogging yourself. Wanking or wanking yourself.
1996		J. Lambert Maquarie Bk. Slang 88/1: flog [...] An act of male masturbation.
2003		Urban Dict. 29 June 🌐 ‘See you in 10 minutes, I’m going to have a flog’.
2014		me-stepmums-too-fuckin-hot-mate at www.fakku.net 🌐 ’magine if she came home an’ caught me havin’ a flog to her jocks.
2015		Footy Almanac 5 Aug. 🌐 We like to have a huge group flog over April 25 [i.e. Anzac Day], though most Australians really don’t understand the meaning of the day.

4. used derog. for a conceited or otherwise despicable person, i.e. a ‘wanker’.

1997		Google Groups: aus.cars 11 July 🌐 I’d rather argue about V8’s or whatever than listen to opinionated drivel from a stuck up flog like yourself.
2009		Big Footy 30 June 🌐 How many of you keyboard warrior flogs know what its like to kick a bag of goals and be adored by the crowd?
2015		Footy Almanac 5 Aug. 🌐 I like the word ‘flog’. I take it to mean a ‘waste of space/oxygen thief’ - particularly if the person is self-important. I use it often for my bosses; or for politicians; or self-appointed spokesmen for something they know nothing about.
2019		Facebook: 102.9 Hot Tomato 16 Aug. 🌐 What is the funniest G RATED insult you’ve heard? Pull your head in? Ya Flog? Get your hand off it!
2022		Twitter 10 Jan. 🌐 He went out maskless knowing he had covid. He is truly a world class flog. And another lawyer taking money over morals.