A crushing defeat — a very large loss in contests, elections, matches, etc.; often used in news reports.
地元チームは昨夜の試合で大敗を喫した。
The local team suffered a crushing defeat in last night's game.
与党は選挙で大敗し、党首が辞任を発表した。
The ruling party suffered a major defeat in the election, and its leader announced his resignation.
準決勝でまさかの大敗を喫した選手はショックで言葉が出なかった。
The player who unexpectedly suffered a heavy defeat in the semifinals was so shocked he couldn't speak.