Bing Crosby popularised ‘pennies from heaven’ in the 1936 film and song of the same name, but the phrase already existed; and Abraham Burstein, rabbi and author, had used ‘pennies falling from heaven’ in The Ghetto Messenger in 1928.
This proverb is first recorded in the mid-18th century as ‘take care of the pence, and the pounds will take care of themselves’ in letters that two fathers wrote to their respective children; so new was the adage that they attributed its coinage to various persons.
U.S., 1903—originally used in the sense of ‘impractical scheme based on empty talk’, the element ‘blue sky’ meaning ‘unrealistic project’, and ‘hot air’ meaning ‘insubstantial claims’
Of American-English origin, ‘gravy train’ is first recorded in 1899 with reference to sporting achievement, not to financial gain; it originated in the use of ‘gravy’ in the figurative sense of ‘advantage’, ‘benefit’, first recorded in 1845.
Often used in phrases such as ‘to jump on the bandwagon’, meaning to join the popular or apparently winning side, ‘bandwagon’ denotes a popular party, faction or cause that attracts growing support; its primary meaning is a wagon used for carrying the band in a parade.
The colloquial phrase ‘long time no see’, which first appeared in the USA in the 1890s, is used as a greeting meaning ‘it is a long time since we last saw each other’. It originated in Chinese Pidgin English, after Chinese ‘hǎojiǔ bú jiàn’, or ‘hǎojĭu méi jiàn’.
A calque of German ‘blauer Montag’, ‘blue Monday’ originally denoted a Monday on which people chose not to work as a result of excessive indulgence over the course of the weekend. Under the influence of the adjective ‘blue’ in the sense ‘dismal’, it came to denote a Monday that is depressing or trying.
The phrase ‘to turn up one’s toes’, meaning ‘to die’, might have originated in the Irish-English phrase ‘to turn up one’s toes to the roots of the daisies’, first found in the passive form ‘with one’s toes turned up to the roots of the daisies’, meaning ‘lying dead’.
U.S.—‘to see the elephant’: to see life, the world or the sights, as of a large city, to gain knowledge by experience. But in 1842, the original meaning of ‘to see the elephant’ was ‘to get sick and tired of something’.
In British slang, the noun ‘piss-up’ denotes ‘a heavy drinking bout’, and the phrase ‘couldn’t organise a piss-up in a brewery’ and variants mean ‘is’, or ‘are’, or ‘am’, ‘incapable of organising the simplest event, task, etc.’—phrase first recorded in 1980.