From Longman Dictionary of Contemporary Englishmortal coilmortal coilliterary life or the state of being alive when Hubbard shuffled off this mortal coil (=died) → mortal
Examples from the Corpus
mortal coil• Times had certainly changed since he had shuffled off the old mortal coil.• Morse and Meldrew both shuffled off this mortal coil and the telly world is diminished by their passing. 