Dog's Breakfast Meaning

Example : 1961 July 7, "Black Temper," Time:  So complex was the scheme that neither blacks nor whites could say for certain who had won. "A dog′s breakfast," cried Laborite M.P. James Callaghan. "I say frankly that I do not begin to understand it."2008 May 18, David Usborne, "The Gene Genie gets an LA makeover," The Independent (UK) (retrieved 9 June 2008):  Critics here are reserving judgement on whether ABC will do "Life in Mars" justice or make a dog′s breakfast of it.2010, Kate Jennings, Bouleversé, Trouble: Evolution of a Radical/Selected Writings 1970-2010, page 277 (Google preview):  I′d trade one of their sublime sentences for the entire crop of sprawling, show-offy novels – dog′s breakfasts of facetiousness – that are currently the literary vogue.