anabranch: A bend in a river that has been cut through by the stream. The main current now runs straight, the anabranch diverges and then rejoins. See billabong.
Barcoo-rot. “Persistent ulceration of the skin, chiefly on the hands, and often originating in abrasions”. (Morris, Australian English). Barcoo is a river in Queensland.
billabong. Based on an aboriginal word. Sometimes used for an anabranch, but more often used for one that, in dry season or droughts especially, is cut off at either or both ends from the main stream. It is often just a muddy pool, and may indeed dry up completely.
blackfellow: condescending for Australian Aboriginal
blackleg: someone who is employed to cross a union picket line to break a workers’ strike. As Molly Ivins said, she was brought up on the three great commandments: do not lie; do not steal; never cross a picket line. Also scab.
blanky or ——: Fill in your own favourite word. Usually however used for “bloody”—see crimson/gory.
blooming: actually used in speech instead of “bloody” (see crimson).
bluey: swag. Explanation in Lawson’s “The romance of the Swag” here.
bob: one shilling
bullocky: Bullock driver. A man who drove teams of bullocks yoked to wagons carrying e.g. wool bales or provisions. Proverbially rough and foul mouthed.