kef \ˈkef, ˈkēf, ˈkāf\noun orkif\ˈkif\ (-s) Etymology: colloq. Arabic kêf (kayf) enjoyment, pleasure 1.: a state of dreamy tranquillity : languor 2.: a smoking material (as hashish) that produces kef < basks there … smoking … his kef — Hendrik de Leeuw >