USA, 1893—the part of a town or city in which prostitution and other commercial sexual activities are concentrated—originally used of Louisville, Kentucky—from the use of a red light as a sign outside a brothel
1992—the culture shock experienced by an individual (typically a Japanese) who, when visiting, or living in, Paris, realises that this city does not fulfil their idealised expectations—apparently a loan translation from Japanese ‘Pari shōkōgun’, coined by Japanese psychiatrist Hiroaki Ōta
a dentist—World War Two—slang of the British armed forces—was soon adopted into (and came to be regarded as) Australian English—earlier synonyms: ‘fang-faker’ and ‘fang-wrencher’
UK, 1677—a bad cough indicative of impending death—with allusion to the churchyard as the site of burial, ‘churchyard’ has been used attributively of something indicative of, or associated with, (impending) death
UK, 1741—all day, incessantly—also, in early use, ‘morn, noon and night’—different from the juxtaposition of the nouns ‘morning’, ‘noon’ and ‘night’, which refers to an action taking place first in the morning, then at noon, and finally at night
from 1924 onwards in stories by English author P. G. Wodehouse—a facetious appellation for a medical practitioner specialising in the diagnosis and treatment of mental illness—‘loony’: shortened form of ‘lunatic’
USA, 1936—psychiatrists or psychiatric workers—refers to the traditional use of white coats by medical personnel—often used in the stereotypical image of a mentally-disordered person being borne away to a psychiatric hospital by psychiatric workers
USA, 1990—a method of caring for a premature newborn in which a parent holds the infant on their chest in skin-to-skin contact—from the fact that kangaroos give birth to still-developing foetuses, then nurse them in their pouches
African-American, 1966—different things please or satisfy different people—‘stroke’ denotes a comforting gesture of approval or congratulation, and, by extension, a flattering or friendly remark