1840 (ref. to 1730s) H.D. Miles Dick Turpin in Partridge DU (1949) 264/2: The rascally forty-pounders [...] a cant name for [police] officers; who received that reward with each ‘Tyburn ticket.’.at forty-pounder (n.) under forty, adj.1
1891 cited in Partridge DU (1961) 653/2: snide lurk, the A variant of snide-pitching [...] 1893 [sic] F.W. Carew [...] implied in a criminal’s nickname: ‘Snide Lurk’.at snide, n.
1925 H. Leverage ‘Dict. Und.’ in Flynn’s mag. cited in Partridge DU (1949).at dead house (n.) under dead, adj.
1925 H. Leverage ‘Dict. Und.’ in Flynn’s mag. cited in Partridge DU (1949).at joy boy (n.) under joy, n.