"dog's breakfast," which has been British slang for "a complete mess" since at least the 1930s. While no one took the time to write down the exact origin of the phrase, the allusion involved seems to be to a failed culinary effort, perhaps a burned or botched omelet, fit only for consumption by the mouth of last resort, Fido. As a vivid figure of speech meaning something so fouled up as to be utterly useless, "dog's breakfast" can cover anything from a play plagued by collapsing scenery to a space mission ruined by a mathematical error. "Dog's dinner," which seems to have appeared around the same time, means exactly the same sort of disaster, but has the advantage of being attractively alliterative. Both phrases are heard occasionally in the U.S., but are more common in the U.K. and Commonwealth countries.
That bedroom looks like a dog's breakfast. Clean it up man!
by jorgepj September 16, 2006
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when something is done in a very poor manner it is said to be a dogs breakfast
you have made a complete dog's breakfast of this
by frankie fester January 20, 2006
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An unappealing mixture of many things... a hodgepodge... a disorganzined mess... but probably still usable (or consumable in the case of food.) From the idea that a dog will eat anything and feeding it a mixture of whatever is on hand. (Unappealing because only the dog finds its breakfast appealing... if you see or smell the dog food in the morning, as you're feeding the dog, it may well turn your stomach.)
Those contractors didn't do very good work and the made a real dog's breakfast of that job
by PlaceHolder June 17, 2004
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A phrase to mean something so messed up it should be revolting. It originated in England when dog owners let their dogs out in the morning to pee. The dog would often eat any puke that the previous nights drunks had left on the street.
This stew looks like a dog's breakfast but it tastes great!
by St. Peter Dickinson February 24, 2017
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An easy to prepare breakfast dish consisting of a slice of toast topped by two softboiled eggs and cut into bite-sized pieces. Ketchup is optional.
"What do you want for breakfast, sweetie?"
"Oooh, Mom, would you please make dog's breakfast?"
by Angela Carrington March 5, 2006
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A chess possition where white is kicking black's ass by means of an ingenius pawn offensive.

D-dog's got a tight dog's breakfast goin' on. Black homie's possition is wack.
by Black Kight, Ph.D. May 3, 2006
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