glass jaw

== English == === Etymology === An allusion to glass being easily breakable. === Noun === glass jaw (plural glass jaws) (chiefly boxing) A fighting vulnerability where one is easily knocked out via a single hard blow to the chin or jaw (due to lack of conditioning, insufficient training, or damage from past cerebral concussions). (figurative) A vulnerability of that sort; a weak spot. Synonyms: see Thesaurus:weak spot ==== Synonyms ==== glass chin, bad chin ==== Antonyms ==== chin ==== Translations ==== === See also === chinny (adjective) === Further reading === “glass jaw n.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present. “glass jaw”, in Merriam-Webster.com Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. Eric Partridge (2005), “glass jaw”, in Tom Dalzell and Terry Victor, editors, The New Partridge Dictionary of Slang and Unconventional English, volume 1 (A–I), London; New York, N.Y.: Routledge, →ISBN, page 874.