Australia, 1948—a period allocated for private conversation, especially between women on isolated stations, over an outback radio network—by extension (1967): any long chat—‘galah’: a very common Australian cockatoo
Australia, 1911—a potato farmer—composed of ‘spud’ (a potato) and ‘cocky’ (a farmer working a small-scale farm)—‘cocky’: shortened form of ‘cockatoo’ (a farmer working a small-scale farm)
Australia, 1950—UK, 1962—derogatory and offensive: a middle-aged or elderly woman, especially one who is unattractive or unfeminine—refers to ‘boiler’, i.e., a tough old chicken for cooking by boiling
is used to comment contemptuously on an instance of unthinking imitation, or of learning or performing by rote—USA, 1889—apparently first used by Californian retailers
UK—a trifling, whimsical news item, especially one that is used as a light-note ending to a television or radio news broadcast—from a short film about a pet duck, first broadcast on the BBC on 24 May 1978