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schmutzdecke n. a naturally occurring gelatinous layer of living biological matter on a sand-based water filter, for which it provides additional filtration. Editorial Note: Occasionally spelled in English as “schmutzedecke” or...
schmutzdecke n.— «The surface is now a veritable of cat hairs, dead fleas, some dirt I suppose, hair-balls and horked-up Friskies.» —“You can bed on it!” by Bruce Usenet: alt.tasteless June 11, 1996. (source:...