Green’s Dictionary of Slang

Abney Park n.

In phrases

go to Abney Park (v.) [Abney Park cemetery in Stoke Newington, north London. Founded in 1840, it succeeded Bunhill Fields as the centre of non-conformist burials. Among those buried there is General William Booth (1829–1912), founder of the Salvation Army]

to die.

1909

J. Ware Passing Eng. of the Victorian Era 1/1: Abney Park (East London). About 1860. An abbreviation of Abney Park cemetery, a burial ground for a large proportion of those who die in the East End of London. Cemetery is a difficult word which the ignorant always avoid. Now used figuratively, e.g., ‘Poor bloke, he’s gone to Abney Park’ – meaning that he is dead.