DEBACLE

rout, fiasco, complete failure

/a sudden and violent collapse

a sound defeat
SYN - drubbing, slaughter, thrashing, trouncing, walloping, whipping

"Once a great example of how a city can be successfully run, Smithstown had suffered from a debacle that made it one of the most chaotic and poorest cities in the nation."

"Lying bloodied and bruised in the locker room the players were left to wonder how they could have possibly ended up on the losing side of this debacle."

"The charity event had been a complete and utter debacle and the cause they were fighting for was sure to suffer from the lack of funds it would receive this year."