Jew's-harp \Jew's-harp`\, n. [Jew + harp; or possibly a corrupt.
of jaw's harp; cf. G. maultrommel, lit., mouthdrum.]
1. An instrument of music, which, when placed between the
teeth, gives, by means of a bent metal tongue struck by
the finger, a sound which is modulated by the breath; --
called also {Jew's-trump}.
[1913 Webster]
2. (Naut.) The shackle for joining a chain cable to an
anchor.
[1913 Webster] Jew's-stone