Synonyms for Jawbone (same or very similar meaning)
WordNet sense 1 (the jaw in vertebrates that is hinged to open the mouth):
jowl, mandible, mandibula, submaxilla, lower jaw, lower jawbone, mandibular boneWordNet sense 2 (talk idly or casually and in a friendly way):
schmooze, schmoose, shmoose, shmoozeFrom the ODE community, based on WordNetadd/edit