Deceitful people, in slang

• Uncouth types, in Canadian slang
• Swindlers, slangily
• Con artists, slangily
• Gardeners, at times
• Rubes, in Canadian lingo
• Scam artists, in slang
• Firefighters, at times
• Bozos, north of the border

Wiktionary Word definitions in Wiktionary
n. (plural of hoser English)