Definition of glass jaw in English:

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glass jaw

Entry from US English dictionary


Boxing , informal
A weak jaw that is easily broken, especially as an indication of a fighter’s vulnerability to an opponent’s punches.
Example sentences
  • He is small for a modern heavyweight, has no punch and a glass jaw.
  • I would have been the kid who looked up at him and said, ‘Jeez, did that guy have a glass jaw or what?’
  • ‘Your partner has a glass jaw,’ Kurtz remarked, looking past Ford and tilting his head in Jake's direction.

For editors and proofreaders

Syllabification: glass jaw

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