UK, 1954—the economic policy of Rab Butler, Conservative Chancellor of the Exchequer (1951-5), regarded as largely indistinguishable from that of Hugh Gaitskell, Labour Chancellor of the Exchequer (1950-1)—blend of ‘Butler’ and ‘Gaitskell’ plus suffix ‘-ism’
to abandon or betray someone in order to protect or advance one’s own interests—originally (British politics, 1971) ‘to push someone under a bus’—derived from ‘to walk under a bus’ (British politics, 1966)
every contribution towards a goal is valuable, regardless of how small it may be—UK, 1707—in Britain, particularly associated with Tesco, which has used this phrase as its slogan since 1993
a type of popular novel characterised by frequent explicit descriptions of sexual encounters between the characters—from ‘bonk’, referring to sexual intercourse, and ‘blockbuster’—UK, 1988—perhaps coined by Sue Limb
genetically modified food—but had been used earlier by members of Weight Watchers in the sense of food one is addicted to—in reference to ‘Frankenstein; Or, The Modern Prometheus’ (1818), by Mary Shelley
a factor speculatively included in a hypothesis or calculation, especially to account for some unquantified but significant phenomenon or to ensure a desired result—USA, 1947
USA—(1957) of computer data: incorrect or poor-quality input will produce faulty output—also applied (1964) to processes likened to computerised data processing
used of something impossible to obtain or achieve—1796—the image is of an illusory quest for the treasure supposed to lie where the rainbow appears to touch the ground