expression, suru verb (irregular)
deserve to die ten thousand deaths; be the worst of the worst
Strong idiomatic condemnation; used to say someone's crime or wrongdoing is so severe that even dying many times over would not be enough punishment. Often used in dramatic or literary contexts.
彼の裏切りは万死に値する。
His betrayal deserves ten thousand deaths.
その非
That atrocious act is a crime worthy of dying ten thousand deaths.