expresses indignation, disbelief or amazement—USA, 1818—expanded form of the exclamation ‘ye gods’—perhaps a reference to the miracle of the loaves and fishes fed to the five thousand in the gospel of Matthew
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
a person who whines or complains—UK, 1769, humorous—‘Peter’ is used as a generic forename, and the adjective ‘grievous’ (meaning ‘aggrieved’) is treated as a surname
a cheap suit of clothes; a (cut-price) tailoring business—UK, 1920, informal—refers to Harry Mallaby-Deeley (1863-1937), a Member of Parliament who opened a cut-price tailoring business in 1920
defined by Collins Dictionary as denoting “an extended period of instability and insecurity, especially one resulting from a series of catastrophic events”—first used in 1975 by the U.S. political scientist John Pearson Roche
a rebuke given in private by a wife to her husband—1625—from the idea that, in order to conduct herself properly, a wife was to rebuke her husband in secret only, i.e., in the privacy of their curtained bed
the affected dandyism of the writers, artists, etc., associated with the aesthetic movement, which advocated a doctrine of ‘art for art’s sake’—UK, 1879—coined by George Du Maurier in cartoons published in Punch
the political, military or economical threat regarded as being posed by certain peoples of South-East and East Asia, especially the Chinese and the Japanese—UK, 1895—loan translation from French ‘péril jaune’