(idiom) to be so evil that even death would be insufficient punishment
Definitions (CC-CANTO)
(saying) Deserve to die
Definitions (粵典–words.hk)
語句
罪咎嚴重到連死都唔能夠抵銷 crimes cannot be offset by death
佢姦殺咗咁多女人,家下畀人監生打死,死有餘辜啦。
佢奸杀咗咁多女人,家下畀人监生打死,死有余辜啦。
keoi5 gaan1 saat3 zo2 gam3 do1 neoi5 jan2, gaa1 haa5 bei2 jan4 gaam3 saang1 daa2 sei2, sei2 jau5 jyu4 gu1 laa1. He raped and murdered so many women. Even he has been beaten to death, his crimes still cannot be offset.
Definitions (Wiktionary)
phrase, idiomatic
to be so gravely sinful that even death of the person is insufficient to pay for his or her crimes