Definition of "Slick" :
noun: a trowel used to make a surface slick
noun: a film of oil or garbage floating on top of water
noun: a slippery smoothness
"He could feel the slickness of the tiller."
noun: a magazine printed on good quality paper
verb: give a smooth and glossy appearance
"Slick one's hair."
verb: make slick or smooth
adjective: marked by skill in deception
"A slick evasive answer."
adjective: having a smooth, gleaming surface reflecting light
"Slick seals and otters."
adjective: having only superficial plausibility
"A slick commercial."
adjective: superficially impressive, but lacking depth and attention to the true complexities of a subject
"A slick advertising campaign."
adjective: made slick by e.g. ice or grease
"Sidewalks slick with ice."