prank

Noun

• a ludicrous or grotesque act done for fun and amusement

• acting like a clown or buffoon

Verb

• dress up showily
  • He pranked himself out in his best clothes
    

• dress or decorate showily or gaudily
  • Roses were pranking the lawn
    

Related words

• Synonyms: 
  antic , joke , trick , caper , put-on , buffoonery , clowning , japery , frivolity , harlequinade