slick·er 
(slĭkər)
(slĭkər)n.
1.
a. A long water-repellant coat usually made of oilskin.
b. A raincoat made of a glossy or shiny material, such as plastic or rubber.
2. A tool for dressing hides.
3. Informal A cheat; a swindler.
4. Informal A person with stylish clothing and manners.