UK—a trifling, whimsical news item, especially one that is used as a light-note ending to a television or radio news broadcast—from a short film about a pet duck, first broadcast on the BBC on 24 May 1978
refer to the teenage years regarded as an age at which jeans are often worn—USA, from 1946 onwards—punningly after, respectively, ‘teenage’, ‘teenager’ and ‘teenaged’
1962: a type of popular music that is rapidly discarded—also, 1967: Benjamin Britten’s War Requiem, regarded as a lachrymose piece of music by Igor Stravinsky—‘Kleenex’: a proprietary name for a soft, disposable paper tissue
‘not under any circumstances’—Royal Air Force slang, 1942—short for ‘not on your Nelly Duff’, i.e., ‘not on your life’, ‘Nelly Duff’ being rhyming slang for ‘puff’ as used colloquially in the sense of ‘life’
USA, 1954: a person who talks excessively—USA, 1964: a person who is addicted to talk radio—from ‘talk’ and the suffix ‘‑aholic’, forming nouns designating a person who is addicted to the thing, activity, etc., expressed by the first element
Australia, 1953—to flatter someone or to (seek to) ingratiate oneself with someone, to curry favour with someone—cf. 19th-century British phrase ‘to piss down someone’s back’ (to flatter someone)
a suspenseful ending to an episode of a serial; the serial itself—USA, early 1930s—originally referred to serials which ended episodes with their protagonists literally hanging from cliffs, or in similarly dangerous situations
to put someone in a difficult, vulnerable or compromising situation, especially by exposing them to blame—USA, 1945, sports—the image is of suspending wet washing in the open so that it can dry
denotes a film, television programme, etc., which adopts the form of a serious documentary in order to satirise its subject—apparently first used (and perhaps coined) in 1952 by the Canadian television producer Ross McLean