What is the origin and earliest recorded usage of 'cock-up'

In informal British English, the expression 'cock-up' (c.f. the US English 'fuck-up') is used to indicate an error or problem in a situation.

What is the origin of this expression and its etymology? Does anyone know of its use prior to the 1960s?

This "blunder" meaning of cock-up has been used before the 1960s, from at least the 1940s in writing.

It can be found in the 1950 Sea slang of the twentieth century: Royal Navy, Merchant Navy, yachtsmen, fishermen, bargemen, canalmen, miscellaneous by Wilfred Granville, which covers the period from 1900 to 1949.

cock-up. A mess-up, a bungled piece of work. A LASH-UP. (Lower-deck.)

lash-up. General confusion caused by a misunderstood order or a bungled job of work. Cf. the Royal Navy's lower-deck term, COCK-UP.

Pierre Clostermann's 1948 Le Grand Cirque is one of the very first post-WWII fighter pilot memoirs:

Hullo Filmstar Leader, sorry old boy, there is a cock-up about the Typhies. Do your best if you can without !

Workers in Stalin's Russia by M. L. Berneri (1944):

The journey of approx. 500 miles took us five days, and has been known to take ten days. As we had to take food for this time we travelled rather like a person moving house. There was a cock-up about transport to take us across the ice to the station

Finally, the term isn't particularly offensive. It's been used scores of times in UK parliament, most recently by Peter Bone:

Last Sunday I attended Indian republic day at the Wellingborough Hindu Association, yet the same week we learn that a £20 billion fighter contract has been lost to, of all people, the French. We now know that the lead bidder was not the British Prime Minister or the British Government, but the Germans. What on earth do they know about cricket and curries? Why was the British Government not leading on that? How did the Secretary of State allow such a cock-up?

Cock up Origin:

Cock up is an innocent expression meaning error used by printers and others, including poachers. This latter group could well be the true origin since it is claimed that, if you startle a pheasant that you're stalking, then it will squawk and the noise sounds like cock up.

Alternative: Cocking a flintlock pistol. If not cocked up there was likely to be a disaster when the trigger was pulled.

Alternative: The arrows of traditional English long bows had three feathers. One of these, named the cock feather, had to be positioned away from the line of the bow stave, otherwise it would hit the bow stave and affect the flight of the arrow to produce a cock up.

Alternative: When a fermented barrel of wine is ready to be run-off for bottling, a stop-cock is driven into the barrel and a sample is tasted to check for quality. If the wine has turned sour, the cock is twisted upside down showing that the barrel is not to be used.

Alternative: In the ranks of soldiers practicing manoeuvres with their flint-lock (or percussion-cap) rifles, it was not unusual to hear a rifle discharge when it shouldn't have done. Some rifles lacked the trigger guard that is now mandatory, and trigger mechanisms in general were not to be trusted. Subsequently, when the rifles where slammed and jerked from position to position, any recruit who had eagerly cocked their rifle in error, would be likely to inadvertently fire the rifle. The remark would be "well, that was a cock up"... the mistake becoming known as a cock up and giving name to many other accidental happenings.

Alternative: Cock up is a well-known nautical expression. The Cock is the upper foremost corner of a gaff sail rigged sail. The Head is the upper edge and the peak the upper after corner. When fully raised the peak is higher than the cock. When raising the gaff, 2 gangs will operate the halyards both on the cock end and peak end of the gaff. It is most important that they raise the gaff horizontal, otherwise this large piece of timber will slew sideways into the mast (it has a metal ring round the mast to stop it coming away completely) and jams fast and then becomes impossible to either raise or lower. This is most acute if the cock is above the peak hence a cock up. It is quite easily done if the 2 gangs are not paying attention to each other.

One of the (many) dictionary definitions for cock is:

• Nonsense (British Slang)

So to cock up is to make a cock of something.

Note that the phrase can be used as a verb or, hyphenated, a noun:

He's going to cock up that piece of work.

This project is a complete cock-up.

Also it can be broken up as you'd expect:

Be careful when folding the souffle, or you'll cock the texture up.

You can also say:

You've made a complete cock of that.

Everything about this effort has gone to cock.

... with that same, non-obscene, meaning for cock.

To answer the question fully, we need an early reference to "cock" meaning nonsense. I suspect it is very early.