an event or a situation that is a complete failure and causes people to feel ashamed or embarrassed (Oxford)
2. a complete failure, especially because of bad planning and organization (Cambridge)
He should take responsibility for the debacle and resign. (Oxford)
Let’s hope this is the end of the debacle over player transfer fees.(Oxford)
should take responsibility for the debacle
end of the debacle
Collapse
Defeat
Accomplishment
Attainment
Debacle