dicky

nouns

a small third seat in the back of an old-fashioned two-seater
dickey, dickey-seat, dickie, dickie-seat, dicky, dicky-seat
a man's detachable insert (usually starched) to simulate the front of a shirt
dickey, dickie, dicky, shirtfront

adjectives

(British informal) faulty
"I've got this dicky heart"- John le Carre
dickey, dicky