Katy bar the door
What's the meaning of the phrase 'Katy bar the door'?
The expression 'Katy (or Katie) bar the door' means take precautions; there's trouble ahead.
What's the origin of the phrase 'Katy bar the door'?
This phrase 'Katu bar the door' is used mostly in the USA, but it may or may not have originated there.
The first known use of Katy bar the door in print with the meaning of 'trouble is in store' is in James Whitcomb Riley's poem When Lide Married Him, 1894:
When Lide married him - w'y, she had to jes dee-fy
The whole poppilation! - But she never bat' an eye!
Her parents begged, and threatened - she must give him up - that he
Wuz jes "a common drunkard!" - And he wuz, appearantly.
Swore they'd chase him off the place
Ef he ever showed his face
Long after she'd eloped with him and married him fer shore!
When Lide married him, it wuz "Katy, bar the door!"
Riley's work can't be the origin of the expression though as his readers would have had to have been familiar with it in order to make sense of the poem.
One suggestion as to the origin of the phrase is that it comes from the traditional Scottish folk-song 'Get Up and Bar the Door'. This was published by the Scottish song collector and editor David Herd, in his collection Ancient and Modern Scottish Songs, Heroic Ballads, etc., 1776. The basis of the song is the stubbornness of a husband and wife who disagree about who should lock the door to their house and make a pact that whoever speaks first should do it, thereby allowing 'two gentlemen' to enter the house uninvited:
It fell about the Martinmas time,
And a gay time it was then,
When our good wife got puddings to make,
And she’s boild them in the pan.
Then up and started our goodwife,
Gied three skips on the floor:
"Goodman, you’ve spoken the foremost word,
Get up and bar the door."
The points against this being the phrase's origin are that it doesn't mention Katy and it isn't American, although the latter point could be explained by the emigration of many Scots to the USA at the end of the 19th century. It does, however, correspond with the meaning of the phrase, that is, it links the failure to bar the door with impending trouble.
Another suggestion is that the phrase originates with the story of Catherine Douglas and her attempt to save the Scottish King James I. He was attacked by discontented subjects in Perth in 1437. The room he was in had a door with a missing locking bar. The story goes that Catherine Douglas tries to save him by barring the door with her arm. Her arm was broken and the mob murdered the King. The 'lass that barred the door' - Catherine Douglas, was henceforth known as Catherine Barlass. The story, although in it is the full Sir Walter Scott romantic history style, is quite well documented from contemporary records and the descendants of Catherine Douglas still use the Barlass name.
The event was commemorated in Dante Gabriel Rossetti's poem The King’s Tragedy, 1881. The full poem is 173 stanzas, but this selection shows the possible links with Katy bar the door:
Then the Queen cried, "Catherine, keep the door,
And I to this will suffice!"
At her word I rose all dazed to my feet,
And my heart was fire and ice.
Like iron felt my arm, as through
The staple I made it pass:-
Alack! it was flesh and bone - no more! 570
'Twas Catherine Douglas sprang to the door,
But I fell back Kate Barlass.
Which, if either, of the above explanations is correct is uncertain. The Kate Barlass story appears to have the stronger claim.