noun Date: 1881 oilskin , 2. \slick to defraud cleverly] a. a clever crook ; swindler, slickster , a city dweller especially of natty appearance or sophisticated mannerisms
SLICKER
Meaning of SLICKER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012