UK, 1972—the nouns ‘granny-bashing’ and ‘granny-battering’ denote: a) the assault or mugging of elderly persons; b) abuse of an elderly member of one’s family, especially one’s grandmother
USA, 1955—diarrhoea suffered by travellers, especially in Mexico—alludes to the Aztec emperor Montezuma II (c.1466-1520), who was captured by the Spanish and died in captivity
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
USA, 1957—the rhythm method of birth control, as permitted by the Roman Catholic Church—with allusion to the unpredictable efficacy of this contraceptive method: from ‘Vatican’, denoting the authority of the Roman Catholic Church, and ‘Russian roulette’
‘femiphobia’ (USA) 1907—‘feminophobia’ (UK) 1914—an irrational fear or dislike of women—from Latin ‘fēmina’ (woman) and combining form ‘-phobia’—probably each coined on various occasions by different persons, independently from each other
In reference to the names of various stretches of the Spanish Mediterranean coast which are popular with British holidaymakers, the Spanish noun ‘costa’ is used humorously as the first element in various invented place names.
Yupik—meaning: “his mind knows what to do but he does not do it”—applied to someone who consistently violates the norms of society in multiple ways—used in January 2022 by Dominic Cummings to describe Boris Johnson
Japan 1990s—the extreme avoidance of social contact, especially by adolescent males; a person, typically an adolescent male, who avoids social contact—Japanese ‘hikikomori’ is the nominalised stem of the verb ‘hikikomoru’, meaning ‘to withdraw into seclusion’
USA, 1907—the (alleged) form of dementedness, leading to violence, that takes hold of a man who believes that his home has been invaded, or that his family has been violated—coined by attorney Delphin M. Delmas, who defended Harry K. Thaw in his first murder trial