a. 1825. Forby, Voc. E. Anglia, Chink, a sprain on the back or loins, seeming to imply a slight separation of the vertebræ.
Hence Chink-backed a.
1868. Daily News, 8 Dec., 5/6. The chink-backed bullock on wall and omnibus has once more issued its warning to the metropolis that the Christmas feast of fat things is at Islington.
Chink, obs. form of CHINCH sb.1, bug.