SLICK
—adjective. Colloq. 1 a skilful or efficient. B superficially or pretentiously smooth and dexterous; glib. 2 sleek, smooth. —none. Large patch of oil etc., esp. On the sea. —verb. Colloq. 1 (usually. Foll. By back, down) flatten (one`s hair etc.). 2 (usually. Foll. By up) make sleek or smart. ? slickly adverb. Slickness none. [old english]