Idiom Insider The origins, properly sourced
The origins, properly sourced How we source & date Folk etymologies corrected Established 2026
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Folk Etymology

First recorded 1800s
the real mccoy
The genuine article rather than an inferior imitation, used to affirm that a person or thing is authentic and not counterfeit.
Folk Etymology1856
First recorded 1900s
riding shotgun
To ride shotgun is to occupy the front passenger seat beside the driver; more broadly, to accompany someone as a protective or supporting second.
Folk Etymology1905
Sporting
bring home the bacon
To bring home the bacon is to earn a living or achieve a decisive success, supplying what is needed through one’s efforts.
Folk Etymology1906
First recorded 1900s
spill the beans
To spill the beans is to disclose secret or private information, often prematurely or accidentally, giving away what was meant to stay hidden.
Folk Etymology1908
Domestic
cold shoulder
To give someone the cold shoulder is to treat them with deliberate coldness or indifference, pointedly ignoring or snubbing them.
Folk Etymology1816
Nautical
son of a gun
Son of a gun is a mild exclamation of surprise or annoyance, or a jocular, half-affectionate term for a man or rogue.
Folk Etymology1708
Domestic
raining cats and dogs
Raining very heavily; a vivid, hyperbolic expression for a downpour of unusually intense and torrential rain.
Folk Etymology1738
Nautical
posh
Elegant, luxurious, or characteristically upper-class in a stylish and sometimes ostentatious way; smart, fashionable and expensive-seeming.
Folk Etymology1914
Sporting
saved by the bell
Rescued from a difficult or losing situation at the last possible moment by a timely interruption or intervention.
Folk Etymology1890
Domestic
sleep tight
A warm parting wish that someone sleep soundly and securely through the night, typically said at bedtime.
Folk Etymology1916