Debacle
Debacle , noun
[French débâcle, from débâcler to unbar, break loose; pref. dé- (prob. = Latin dis) + bâcler to bolt, from Latin baculum a stick.]
1.
(Geology) A breaking or bursting forth; a violent rush or flood of waters which breaks down opposing barriers, and hurls forward and disperses blocks of stone and other débris.
2.
A sudden breaking up or breaking loose; a violent dispersion or disruption; impetuous rush; outburst.
3.
a complete and ludicrous failure; a rout, as of an army; a great disaster; a fiasco.