What is "jew's harp"

n. a small lyre-shaped musical instrument that is placed between the teeth and played by twanging a wire tongue while changing the shape of the mouth cavity [syn: jews' harp, mouth bow]

The Jew's harp, also known as the jaw harp, mouth harp, Ozark harp or juice harp, is a lamellophone instrument, which is in the category of plucked idiophones: it consists of a flexible metal or bamboo tongue or reed attached to a frame. The tongue/reed is placed in the performer's mouth and plucked with the finger to produce a note.