Slicker

['slɪkə] or ['slɪkɚ]

(noun.) a person with good manners and stylish clothing.

Editor: Nicolas--From WordNet

(n.) That which makes smooth or sleek.

(n.) A kind of burnisher for leather.

(n.) A curved tool for smoothing the surfaces of a mold after the withdrawal of the pattern.

(n.) A waterproof coat.

Typist: Zamenhof