slicker (n.)

• abradant
• abrasive
• burnish
• cardsharp
• cardsharper
• carpetbagger
• cheat
• cheater
• cosmopolitan
• cosmopolite
• crimp
• defrauder
• double-dealer
• man-about-town
• mountebank
• pettifogger
• pitchman
• polish
• roller
• shark
• sharp
• sharper
• sharpie
• shyster
• smooth
• smoother
• sophisticate
• swindler
• trickster