Green’s Dictionary of Slang

scold’s cure n.

a funeral, a coffin.

1796

180018101820183018401850

1859

1796		Grose Classical Dict. of the Vulgar Tongue (3rd edn) n.p.: A Scold’s Cure. A coffin. […].
1811		Lex. Balatronicum [as cit. 1796].
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1859		Matsell Vocabulum.

In phrases

nap the scold’s cure (v.)

to be placed in one’s coffin.

1796

1800185019001950

1984

1796		Grose Classical Dict. of the Vulgar Tongue (3rd edn) n.p.: . […] The blowen has napped the scold’s cure; the bitch is in her coffin.
1984		Partridge DSUE (8th edn) 1020/1: ca. 1810–60.