Green’s Dictionary of Slang

of a woman, slovenly.

c.1790		‘Peter Pindar’ ‘Pathetic Odes’ Works (1794) III 389: So slammakin, untidy, ragged, mean, Her garments all so shabby and unpinn’d.
1837		‘The Professor’ in Bentley’s Misc. Sept. 282: Did I give you money to buy clothes for this [...] and make love to that saucy, slammerkin, sentimental Miss Grampus?
1838		W. Holloway Dict. of Provincialisms 156/1: Slammerkin [...] Untidy; slatternly.
1845		J. Lindridge Sixteen-String Jack 126: There’s frolicking Kate, and rollicking Bet, / And slammerkin Sall so tall.
1888–94		‘Walter’ My Secret Life (1966) I 197: I scarcely ever found her untidy, dirty, or slammerkin.