glass jaw

English

Etymology

An allusion to the fact that glass is easily breakable.

Noun

glass jaw (plural glass jaws)

1. (chiefly boxing) A sensitive chin or jaw, the physical striking of which tends to result in a knockout.
   • 1989, Bryce Courtenay, The Power of One, ISBN 9780345410054, page 109:

     "How was I to know that big ape had a glass jaw?"

Synonyms

• glass chin, bad chin

See also

• chinny (adj.)