What is a lick on piano?
In popular music genres such as country, blues, jazz or rock music, a lick is "a stock pattern or phrase" consisting of a short series of notes used in solos and melodic lines and accompaniment. For musicians, learning a lick is usually a form of imitation.
What is a lick jazz?
Jazz lick: a melodic line that an improviser has acquired for the means of reproducing note-for-note in their improvised solo. The line may have been learned from a recording, but most likely it was acquired through a jazz transcriptions book or a method book on how to improvise.