- The definition of a fiasco is something that is an utter and complete disaster.
An example of fiasco is a party where no one shows up and the clown hired to entertain breaks his leg and sues.
fiasco definition by Webster's New World
fiasco definition by American Heritage Dictionary
noun pl. fi·as·coes or fi·as·cos
Origin: French, from Italian fare fiasco, to make a bottle, fail, from fiasco, bottle (perhaps translation of French bouteille, bottle, error, used by the French for linguistic errors committed by Italian actors on the 18th-century French stage), from Late Latin flascō; see flask.