dicky, 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.
dicky, adj. (dickier, dickiest) Brit. sl. unsound, likely to collapse or fail.
19th c.: perh. f. 'as queer as Dick's hatband'