finger-lickin' good

Etymology
From the advertising slogan “It’s finger-lickin’ good” adopted by the U.S. fast-food restaurant chain Kentucky Fried Chicken (now ) in 1956, referring to the fact that something eaten with the hands is so delicious that one cannot help but lick one’s fingers to savour the crumbs of food or juices left behind.

Adjective

 * 1) Of food: very delicious; delectable, scrumptious.
 * 2)  Extremely good; superb.
 * 1)  Extremely good; superb.
 * 1)  Extremely good; superb.