chiefly UK politics—a culture characterised by influential networks of close friends—from ‘chum’ (a close friend) and ‘‑ocracy’ (forming nouns designating forms of government or groups who exercise political or social power)
(literally) to formally agree to something by signing an official document—(figuratively) to make a firm commitment about something—USA, 1900s, in reference to life-insurance contracts
highly convincing circumstantial evidence—USA, 1862—ascribed to Henry David Thoreau—refers to the practice of surreptitiously diluting milk with stream-water
USA, 1930—a rhetorical question calling attention to a non-sequitur or irrelevant statement or suggestion made by another person—one of the phrases built on the pattern ‘what has that got to do with the price of ——?’
UK, 1813, as ‘to blot the landscape’, meaning, of an ugly feature, to spoil the appearance of a place—also used figuratively of anything unsightly or unappealing that spoils an otherwise pleasant scene
Australia, 1976—used by Aborigines to depreciatively designate unemployment or welfare benefits—‘sit-down’ means: performed or obtained while sitting down, with the implication that no or few efforts are required
Australia, 1932: to attract unwelcome attention or criticism—originally, WWI slang: to draw artillery fire from the enemy, in reference to crab shells, used with punning allusion to artillery shells
UK, 1979—to sell a valuable resource or asset for immediate advantage—in particular: to dispose of a nation’s assets for financial gain—‘family silver’: something considered to be of great value, materially or otherwise
Australia, 1925—a section of Sussex Street, on the Sydney waterfront, along which, in the 1920s and 1930s, unemployed wharf-labourers trudged, waiting to be handpicked for the few available jobs