Tart /(?)/

Tart

a.
  1. Sharp to the taste; acid; sour; as, a tart apple.
  2. Fig.: Sharp; keen; severe; as, a tart reply; tart language; a tart rebuke.
    Why art thou tart, my brother?

Tart

n.
  1. A species of small open pie, or piece of pastry, containing jelly or conserve; a sort of fruit pie.