jawbone

Short definition from Wiktionary

Noun

1. 1
   The bone of the lower jaw; the mandible.
2. 2
   Any of the bones in the lower or upper jaw.
3. 3
   A shaken musical instrument (an idiophone) made from the jawbone of an animal and shaken such that the teeth vibrate in their sockets to produce sound.
4. 4
   Credit.

Verb

1. 1
   To talk persistently in an attempt to persuade somebody to cooperate.
2. 2
   (especially of regulatory agencies) To try to persuade (someone) through implied threats of punitive action, such as tighter regulatory control.