SLATTERN Meaning of SLATTERN in English [ 'slat(ə)n ]■ noun dated a dirty, untidy woman.Derivatives~liness noun~ly adjective OriginC17: related to slattering 'slovenly', from dialect slatter 'to spill or slop'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004