Sunday, 4 August 2024

Blue Idioms

Several words have become part of the language in being used in phrases. Last time we looked at ‘green’ and now look at ‘blue’.

Blue blood is first seen to describe those of noble birth in 1809. It is not an English reference but one describing the old aristocrats of Castile in Spain.

Out of the blue, or a bolt from the blue, is first used in Thomas Carlyle’s writing entitled The French Revolution.

Blue, when referring to something risqué, is not recorded until 1840 and there is little evidence to explain why the colour was chosen. Several theories have been put forward, most often the colour of choice worn by ladies of the night.

Blue in the face, used to describe someone who is frustrated, is first recorded in 1864. Yet earlier it was said to be black and blue in the face, the earlier form seen from 1829.

Once in a blue moon is first used in the modern sense to describe a very long time in an anti-cleric flyer in 1528. But a blue moon is a real astronomical event and occurs, on average, every 33 months. As the lunar month is slightly shorter than a calendar month, the blue moon is simply a second full moon in a calendar month.


Monday blues originated in the US press in the 1830s, used to describe the hung over workforce returning to work after the weekend. More recently Blue Monday is the third Monday in January, said to be the most depressing day of the year.

Blue collar is first used in 1924, another of US origins, describing manual workers as opposed to white collar office workers.

Blue-eyed boy is first used in print in the novels of P.G. Wodehouse in 1919.

Blue ribbon is a misnomer used solely in the USA for many years. It was a mis-hearing of ‘blue riband’ and resulted in blue ribbons being awarded as prizes. Blue Riband had been awarded to the vessel making the fastest trans-Atlantic crossing when it was the only way to travel between the two continents. Blue Riband was borrowed in the early 20th century from the prize awarded in horse racing.


True blue has been used for centuries, certainly appearing in Chaucer, and likely only through the obvious rhyme. Yet it has not always had the same meaning. In the 15th century it was used to mean ‘sorrowful’; by 1788 it described women as either ‘pedantic’ or ‘learned’ depending upon context; while latterly it is a song by Madonna.

Feeling blue is simply the modern version of the earliest use of ‘true blue’, although there are records of ‘the blues’ from as early as the 16th century.

Blues and twos is a police reference to the blue flashing lights and the two tone siren used when attending an emergency.


Blue sky thinking seems to date from the 1940s and is based on the idea that the best work is done when the weather is fine or, possibly, the weather is perceived as better when working well.

Blue sky research is exactly the same as ‘blue sky thinking’ and seems to have developed at the same time.

Blue chip stocks are those which are a fairly safe bet and usually a buy-in to major companies.

Nobody had baby blues before 1892, when it first appeared in the Magazine of Poetry


Scream blue murder first appears around the late 19th and early 20th centuries. My research has often seen me reading old newspaper reports and I have often read of someone giving evidence at a trial or inquest and relating how they were first aware of the victim’s distress when they called out ‘you have murdered me’. I always wonder whether that was accepted as evidence as for surely you can’t be guilty of murder, while the victim is still breathing and screaming blue murder.

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