Possible Clues:

• Uncouth types, in Canadian slang
• Firefighters, at times
• Unmannerly sorts, in Canadian slang
• Oafs, in Ontario
• Clods, in Calgary
• Swindlers, slangily
• Scam artists, in slang
• Con artists, slangily
• Boorish sorts, in Canada
• Meatheads, in Montreal