pastoralist: OED sees it a equivalent to “squatter”, but in Lawson someone often someone managing a large cattle/sheep “station” for a “pastoral company” rather than an individual. Seen as ultimate capitalist oppression.
pluddy: see crimson
quid: monetary unit; one pound
ratty: insane—or, very eccentric, “cranky”.
ringer: the champion sheep shearer in a shed that season
rouseabout: Labourer in a (sheep) shearing shed. Considered to be, as far as any work is, unskilled labour.
sawney: silly, gormless
scab: see blackleg
shout: In a group; to stand (pay for) a round of drinks. Bad form to leave before your turn comes around. Much peer pressure to drink more than one wished. One can also “shout” for everyone in the pub.
skillion(-room): A “lean-to”, a room built up against the back of some other building, with separate roof.