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1.
slovenly;untidy or slutty, or the quality of behaving like a slattern}
That women sleeps with every man she runs into. She is so slatternly.
by rbs1 April 28, 2007
 
2.
Something only found in Kreysig's Advanced Engineering Mathematics in the reading room of the UCLA Math department.
Only a slattern would slatternly help Michael find his jacket.
by mayHem07 September 22, 2008