(as) dead as a doornail
US /əz dɛd əz ə ˈdɔrˌneɪl/
UK /əz dɛd əz ə ˈdɔrˌneɪl/

1.
mati total, benar-benar mati
completely dead; no longer alive or functioning
:
•
The old car was as dead as a doornail after the accident.
Mobil tua itu mati total setelah kecelakaan.
•
I tried to revive the computer, but it was as dead as a doornail.
Saya mencoba menghidupkan kembali komputer, tetapi sudah mati total.