slicker

nouns

a macintosh made from cotton fabric treated with oil and pigment to make it waterproof
oilskin, slicker
a person with good manners and stylish clothing
slicker
is a type of (narrower)
a worldly-wise person
man of the world, sophisticate
someone who leads you to believe something that is not true
beguiler, cheat, cheater, deceiver, slicker, trickster