a moment of sudden discovery, inspiration or insight—1918—from the reputed exclamation of Archimedes when he realised that the volume of a solid could be calculated by measuring the water displaced when it was immersed
the longest serving female member of the British House of Commons—1920—originally applied to Nancy Astor, Member of Parliament from 1919 to 1945—coined after ‘Father of the House (of Commons)’
UK, 2001: the defeat of a high-profile Member of Parliament, indicating a significant political change—originally, UK, 1997: the announcement of Michael Portillo’s defeat, seen as emblematic of the Conservative defeat in the general election
Australia, 1943, derogatory—a soldier who does not see active service, especially a reservist—from ‘cut lunch’, denoting a packed lunch, typically consisting of sandwiches
USA, 1929: to force someone into a situation from which it is not easy to escape—the image is of someone who is painting a floor and ends up in a corner of the room with wet paint all around them (USA, 1913)
also ‘like a lily on a dirt-tin’ and variants—something or somebody that is incongruous or conspicuous—UK, 1934, but chiefly Australian (from 1948 onwards)
Australia, 1888—to stir up controversy; to liven things up—also ‘to rouse the possum’ (Australia, 1898)—this phrase probably developed as the obverse of ‘to play possum’
literally, of a jockey in horseracing (USA, 1869): to manoeuvre in order to get one’s horse into a desired position at the beginning of a race—figuratively (USA, 1881): to manoeuvre in order to gain advantage over rivals in a competitive situation
UK & Ireland—a shop that sells a wide range of goods at low prices, typically one pound or less—hence also: of the type or quality found in a pound shop, cheap, second-rate