'R'
Rabbit A bottle of beer
Rack off Your presence is no longer required

Rafferty's rules

No rules at all. Applied to any system, organisation or contest run in a slipshod or irregular manner

Rag -the- The newspaper
Rager A wild, unruly bullock that causes disturbance in a stockyard
Raker To fall heavily
Ram A trickster's confederate
Ram struck mutton Tough meat from old ewes past breeding
Rapt -being- Being happy
Raspberrylander A Tasmanian
Ratbag An eccentric person; a foolish person
Raw prawn -come the- To attempt to deceive or hoodwink someone
Razoo A non-existent coin. Used negatively as in "I haven't got a razoo"
Razorbacks Cattle that are lean and scraggy
Ready A swindle or conspiracy
Ready up -to- To tip off; to put someone wise
Reckon Used as a term, if one is not 100% sure about something eg "I reckon it's like this" "Do you reckon that's right"
Red 'arry A £ 10 note
Red centre -the- The central area of Australia
Red ned Cheap red wine
Red steer -a- A bushfire
Redeye A type of cicada
Reds Fleas

Reef off

To take money from a person; to extract large sums of money from someone

Reffo

A refugee from Europe who, just before or just after World War II, settled in Australia

Rellies Relatives
Remittance man A Briton living in Australia on money sent to him more or less regularly from his country
Removalist A person or firm engaging in the shifting of household or business effects
Ribuck Correct; genuine
Ridge Satisfactory; genuine; approved
Ridgy didge -it's- Satisfactory; genuine; approved; the truth
Right oil Correct information; the true facts
Rightio Yes; ok; that's enough, break it down
Righto Yes; ok; that's enough, break it down
Ring The scene of operations of a two-up school or the school itself
Ring a shed To shear the largest number of sheep in a shearing shed; to be the best Shearer in the shed
Ring dollar As for holey dollar
Ring in -a- Something or someone that does not belong where it is; a fake
Ring of A remarkably alike person
Ring one's tail To submit; give in; reveal timidity
Ringer -a- The fastest Shearer in a shearing shed; a person of outstanding competence in a job; a stockman
Ringie The keeper of a two-up school
Ringin -a- An imposter
Ringneck A jackeroo
Ringtail A coward
Ripper -a- A word of approval eg "Your new car is a ripper"
Ripsnorter -it's a- It's great; it's amazing
Riverina A shilling
Road train -a- A truck, pulling multiple trailers; mainly used to cross the outback
Roaring horsetails The Aurora Australis
Rock hopper A person who fishes from rocks on a sea coast
Rocking horse manure A term used for any non-existent commodity
Rocky A rock wallaby; a rockmelon
Rod in pickle Said of a good racehorse that is being held for a certain win
Roll -go and have a- Go to the devil; go away
Roll up An assembly or gathering; the number of people attending a meeting
Roo A Kangaroo
Root -to- To have sex

Note:
Some advise to my Yank readers. Don't root while in Australia. If you want to tell someone which football team etc, you are supporting .... the right word to use is
"I barrack' ..... don't say "I root"

Rooted -get- Go to blazes
Rooted -I am- I am very tired
Ropeable Violently angry; savagely ill tempered
Rort A dodge, scheme or racket; a lively drunken party; an orgy
Rosella A sheep that has lost part of its wool
Rotten Drunk
Rotten form -how's your- How lucky you are
Rough -a bit- Unreasonable; unfair
Rough as bags Unpolished, crude, coarse
Rough on Hard or severe towards a person
Rough up A fight; a street brawl
Roughy An example of sharp dealing or victimisation
Rouse on To upbraid a person
Rouseabout A handyman on a station
Roziner A strong alcoholic drink
Rubber -a- An eraser
Rubberdy A hotel
Rug A £ 1 note
Rug up -to- To dress in very warm clothes
Run A station; a large area of grazing land
Run a sheep To shear a sheep's fleece near the top, leaving the thick base wool intact
Run -get the- To be dismissed from employment

Run rings around

To defeat someone soundly in any contest of skill or intelligence

Run the rabbit

To secure liquor, often illegally eg after hours

Runabouts Cattle allowed to graze freely

Runs -the-

Diarrhoea

Russians

Wild horses or wild cattle