dickey

noun
  1. a detachable shirt front or collar worn to give the appearance of a shirt under a sweater or jacket
  2. a small bird, especially a small songbird
  3. Usage: informal
  4. the driver’s seat in a carriage or the front seat of a car
  5. Usage: archaic
adjective
  1. unreliable, faulty, or in poor condition
  2. Usage: British informal

Examples