Толковый словарь английского языка Oxford English Reference - dicky

1. n. (also dickey) (pl. -ies or -eys) colloq. 1 a false shirt-front. 2 (in full dicky-bird) a child's word for a little bird. 3 Brit. a driver's seat in a carriage. 4 Brit. an extra folding seat at the back of a vehicle. 5 (in full dicky bow) Brit. a bow-tie. Etymology: some senses f. Dicky (as DICK(1)) 2. adj. (dickier, dickiest) Brit. sl. unsound, likely to collapse or fail. Etymology: 19th c.: perh. f. 'as queer as Dick's hatband'