It is very curious how words creep into the language. People use 'tod' for alone or lonely; he's on his tod, he's a bit tod; but the American jockey who won the 1,000 Guineas in 1898 would be astonished that Londoners took his first name and used it in rhyming slang. He was Tod Sloan.
OK is another. Surely nobody thought that a comic misspelling of "All correct" would outlive the fad for such constructions and become the OK which everyone uses for 'that's fine' , 'agreed' or 'yes'.
Omnishambles seems set fare to become universal for localised chaos.