or names, etc., subs. (colloquial).—Long words difficult to pronounce. [From CRACK, to break, + JAW, speech.] Variants are HALF-CROWN WORDS, JAW-BREAKERS, and CRAMP WORDS.
1876. M. E. BRADDON, Joshua Haggard’s Daughter, ch. vii. ‘He brings her plants with CRACKJAW NAMES.’
1883. Daily Telegraph, June 25, p. 3, col. 1. ‘Some of the ways with the CRACK-JAW NAMES of cooking it would give it a foreign flavour to me.’
