scum of the earth

from Moby Thesaurus II by Grady Ward, 1.0

38 Moby Thesaurus words for "scum of the earth":
      bilge, bilgewater, carrion, cattle, chaff, children of darkness,
      dishwater, ditchwater, dregs, dregs of society, garbage,
      limbs of Satan, offal, offscourings, offscum, raff, refuse,
      riffraff, rubbish, scum, scurf, sewage, sewerage, slop, slops,
      slough, sons of Belial, sons of men, sordes, swill,
      swinish multitude, the bad, the evil, the reprobate,
      the unrighteous, the wicked, trash, vermin