fiasco
noun [ C ] uk/fiˈæs.kəʊ/ us/fiˈæs.koʊ/ fiascos or fiascoes
完全失败；尴尬的结局
something planned that goes wrong and is a complete failure, usually in an embarrassing way
The show was a fiasco - one actor forgot his lines and another fell off the stage. 演出彻底搞砸了，一个演员忘了台词，另一个跌下了舞台。
Synonym: debacle