FILTH Meaning of FILTH in English [filth] n [ME, fr. OE fylth, fr. ful foul] (bef. 12c) 1: foul or putrid matter; esp: loathsome dirt or refuse 2. a: moral corruption or defilement b: something that tends to corrupt or defile Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012