From Longman Dictionary of Contemporary Englishslatternslat‧tern /ˈslætən $ -ərn/ noun [countable] old-fashioned UNPLEASANTa dirty untidy woman – used to show disapproval —slatternly adjective
Examples from the Corpus
slattern• Anyway, the stranger was about to leave when a slattern dropped a tankard.• A slattern brought his own meal, a thickly spiced bowl of soup.• A slattern, evidently his wife, looked on fearfully.• Two days later I was in the taproom of Le Coq d'Or, the slattern beside me half drunk.Origin slattern (1600-1700) Probably from German schlottern “to hang loosely” 