The definition of a debacle is a sudden downfall or a total failure.(noun)
An example of a debacle is a poorly run political campaign that ends in overwhelming defeat.
See debacle in Webster's New World College Dictionary
Origin: Fr débâcle, breakup, overthrow < débâcler, to break up < dé-, de-, + bâcler, to bar, prob. < VL *bacculare < *bacculum, var. of L baculum, staff: see bacillus
See debacle in American Heritage Dictionary 4
Origin: French débâcle
Origin: , from débâcler, to unbar
Origin: , from Old French desbacler
Origin: : des-, de-
Origin: + bacler, to bar (from Vulgar Latin *bacculāre, from Latin baculum, rod; see bak- in Indo-European roots).
Learn more about debacle