Definition of jaw drops
: someone's mouth opens in a way that shows he or she is very surprised or shocked His jaw dropped when he heard who had won.
Word by Word Definitions
: either of two complex cartilaginous or bony structures in most vertebrates that border the mouth, support the soft parts enclosing it, usually bear teeth on their oral margin, and are an upper that is more or less firmly fused with the skull and a lower that is hinged, movable, and articulated with the temporal bone of either side — compare mandible, maxilla
: any of various organs of invertebrates that perform the function of the vertebrate jaws
: something resembling the jaw of an animal: such as
: to talk especially abusively, indignantly, or long-windedly
: to talk to in a scolding or boring manner
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