Source : Webster's Revised Unabridged Dictionary (1913)

Slamkin \Slam"kin\, Slammerkin \Slam"mer*kin\, n. [Cf. G.
   schlampe, schlamp, dim. schl["a]mpchen; schlampen to dangle,
   to be slovenly in one's dress.]
   A slut; a slatternly woman. [Obs. or Prov. Eng.]