In the "As...as" thread, FishonaBike (pardon if I spelled your handle wrong, Fish!) mentions an absolute shambles as being a cock-up.

Now I've heard the phrase "a cock-up" before - but what is its derivation?

Reminds me of happy days watching The Fall and Rise of Reginald Perrin: "Bit of a cock-up on the catering front...."

Let us go in peace to love and serve the board.