1) Canaille 2) Ragtag 3) Scum 1) Common people 2) Disreputable crowd 3) Disreputable group 4) Disreputable people 5) Folk 6) Hoi polloi 7) Lowerclassmen 8) Rabble 9) Ragtag 10) Ragtag and bobtail 11) The great unwashed 12) Unrespected people 13) Worthless ones 
• (n.) Sweepings; refuse; the lowest order of society.
Riff'raff` noun [ Middle English rif and raf every particle, Old French rif et raf . CF. Raff , and 1st Rifle .] Sweepings; refuse; the lowest order of society. Beau. & Fl. 
ragtag noun disparaging terms for the common people