idiom > monstrous catastrophe
Contents
Mortal catastrophe
  Explanation: Mi: full. Big evil
  Usage: Partial official; as subject, object; described made a big mistake
  Source: Yuan Anonymous "Bowls Ghost": "This is your own clutch of this mortal catastrophe substandard."
  Examples: He realized that he got into ~.
Thesaurus
crowning calamity; be swamped in the vast ocean