Riffraff

(n.) Sweepings; refuse; the lowest order of society.

Thesaurus Entries

bilge, bilgewater, canaille, carrion, cattle, chaff, clamjamfry, debris, dishwater, ditchwater, dregs, dregs of society, dust, garbage, junk, kelter, litter, lumber, masses, mob, offal, offscourings, offscum, proletariat, raff, ragtag and bobtail, refuse, rubbish, rubble, scrap, scum, scurf, sewage, sewerage, shoddy, slop, slops, slough, sordes, swill, swinish multitude, trash, truck, unwashed, vermin, waste