antic

noun
  1. A playful or silly act, gesture, or prank, often characterized by exaggerated or bizarre behavior intended to amuse or entertain. noun
    The children were making silly antics at the party, causing everyone to laugh.
    His antics on stage included funny dances and exaggerated expressions that delighted the audience.
  2. Relating to or characteristic of a playful, bizarre, or grotesque manner; eccentric or bizarre in appearance or behavior. adjective
    The costume was so antic that it drew everyone's attention at the costume party.
    She has an antic sense of humor that often surprises her friends.