What is Jaw?

Jaw definition and meaning on Dictionary terms:
either of two bones, the mandible or maxilla, forming the framework of the mouth.
the part of the face covering these bones, the mouth, or the mouth parts collectively: My jaw is swollen.
jaws, anything resembling a pair of jaws or evoking the concept of grasping and holding: the jaws of a gorge; the jaws of death.
Machinery. one of two or more parts, as of a machine, that grasp or hold something: the jaws of a vise. any of two or more protruding parts for attaching to or meshing with similar parts.

Often jaws. Also called throat. Nautical. a forked piece at the end of a gaff, fitting halfway around the mast.
Slang. idle talk; chatter. impertinent talk.

verb (used without object)
Slang. to talk; chat; gossip. to scold or use abusive language.

verb (used with object)
Slang. to scold.


reference: https://www.dictionary.com/browse/jaw