UK, 19th century—‘red on the map’: the colonies and dominions of the British Empire—‘to paint the map red’: to expand the territory of the British Empire—from the colour used to represent British colonies and dominions on maps
UK, 1914—snobbish or supercilious—refers perhaps to ‘toff’, denoting a fashionable upper-class person—the image is perhaps of someone who, considering themself superior, keeps their nose high in contempt for the lower classes—cf. the form ‘toffy-nosed’ (1919)
UK, 1927—affected, pompous—from ‘pound note’ and the suffix ‘-ish’, meaning ‘having the qualities of’—the image is probably of someone who pretends to be worth a pound sterling when they are actually worth less
1609—to add to what is already great, also to add difficulty to difficulty—Pelion and Ossa are two mountains in Thessaly—in Greek mythology, two giants, Otus and Ephialtes, tried to pile Pelion and Ossa on Olympus in order to reach the gods and overthrow them
UK, 1920—a group of three objects or persons—alludes to Pip, Squeak and Wilfred, a trio of animal characters featured in a children’s comic strip published in The Daily Mirror (London) from 1919 onwards
1727—a labourer of the lowest kind—refers to the enslavement of the Gibeonites by the Israelites in the Book of Joshua, 9:21-27, as it occurs in the King James Bible (1611)
UK, 2015—(depreciative) a supporter of Jeremy Corbyn, Leader of the Labour Party and Leader of the Opposition from 2015 to 2020—coined after nouns such as ‘Sandinista’—intended to liken Corbyn’s supporters at best to radical socialists and at worst to cultists
UK, 1989—refers to Manchester, in north-western England, as a centre of popular music and club subculture in Britain in the late 1980s and early 1990s—blend of ‘mad’ and ‘Manchester’
In British English, the noun ‘porky’ (also ‘porkie’) is short for ‘porky pie’ (also ‘porkie pie’), which is an alteration of ‘pork pie’, rhyming slang for the noun ‘lie’.
UK, 1993—meaning: influenced or determined by a person’s locality or postal address—in phrases such as ‘postcode discrimination’—frequently with reference to the unequal provision of healthcare