barker’s, adj. — Green’s Dictionary of Slang

barker’s adj.

[rhy. sl. = starkers adj.¹; Barker’s was a large department store in High Street Kensington, London, until c.1970]

naked, nude.

1978

Maledicta II:1+2 (Summer/Winter) 117: Also in evidence were department stores in London such as C & A = ‘gay’ (homosexual) – with ‘Cocksucker and Arsehole’ explaining the initials – and Barker’s = starkers (‘nude’, US stark naked).