An expression originally used in the roman area, now widespread across all Italy. It's also used when you don't believe what the other person is saying, kinda like "The kid's name? Albert Einstein" if you catch my drift. For example: "I renewed my car insurance the other day." "E 'sti cazzi." "At the end of the movie they all die." "E 'sti cazzi." "A dinosaur crashed my house yesterday." "E 'sti cazzi." Edit: spelling.