The Collaborative International Dictionary of English v.0.48:

Jawbone \Jaw"bone`\, n.
   The bone of either jaw; a maxilla or a mandible.

The Collaborative International Dictionary of English v.0.48:

jawbone \jaw"bone`\ (j[add]"b[=o]n`), v. t. & i. [imp. & p. p.
   jawboned (j[add]"b[=o]nd`); p. pr. & vb. n. jawboning.]
   To attempt to influence solely by talking, as contrasted with
   threatening or inducing by other means, e.g. legislation;
   esp. to make public appeals in order to influence the
   behavior of businessmen or labor leaders; -- used especially
   of the President or other high government officials; as, to
   jawbone businessmen into forgoing price increases.
   [1913 Webster] -- jaw"bon*ing, n.
   [PJC]

WordNet (r) 3.0 (2006):

jawbone
    n 1: the jaw in vertebrates that is hinged to open the mouth
         [syn: lower jaw, mandible, mandibula, mandibular
         bone, submaxilla, lower jawbone, jawbone, jowl]
    v 1: talk idly or casually and in a friendly way [syn:
         shmooze, shmoose, schmooze, schmoose, jawbone]

Easton's 1897 Bible Dictionary:

Jaw-bone
   of an ass afforded Samson a weapon for the great slaughter of
   the Philistines (Judg. 15.15), in which he slew a thousand men.
   In verse 19 the Authorized Version reads, "God clave a hollow
   place that was in the jaw, and there came water thereout." This
   is a mis-translation of the words. The rendering should be as in
   the Revised Version, "God clave the hollow place that is in
   Lehi," etc., Lehi (q.v.) being the name of the hill where this
   conflict was waged, possibly so called because it was in shape
   like a jaw-bone.