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Glite Dictionary
glass chin

glass chin

1 8.8
A weak jaw that makes someone easy to knock out
  • noun
  • /ɡlæs tʃɪn/
  • Jargon
translation icon : mandíbula de cristal
  • He's the kind of boxer with a glass chin.

Examples

  • Many critics argue that his glass chin makes him a risky fighter in the ring.

  • If you want to succeed in boxing, you can't afford to have a glass chin.

  • There are a lot of people on here saying he is through, he's not the same fighter, he suddenly has a glass chin. The fact of the matter is that until November 24th,

    Blog text (20)

  • Hunter would surely tighten up Khan's defense, which he desperately needs since his glass chin will continue getting cracked to bits unless he learns to protect it.

    Blog text (21)

  • A boxer with a glass chin often struggles against powerful opponents.

Synonyms

glass jaw
vsglass chin
  • Informal
2 7.9

A weakness that makes someone easily knocked out in a fight

refers specifically to being knocked unconscious due to a weak facial strike

Surface Forms

glass chin singular
glass chins plural

Morphology

glass + chin

The compound pairs literal 'chin' with the metaphorical property of 'glass' (fragility), so a learner who knows both words can likely infer a sense of vulnerability or a weak jaw. However, the specific idiomatic extension to being easily knocked out in a boxing context is domain-specific and not fully predictable, making it only partially transparent.

Etymology

Glass chin comes from the image of a glass chin, fragile and easy to break when struck. That's why it means 'easily knocked out' in a fight.