Source : Webster's Revised Unabridged Dictionary (1913)

Charivari \Cha*ri`va*ri"\, n. [F.]
   A mock serenade of discordant noises, made with kettles, tin
   horns, etc., designed to annoy and insult.

   Note: It was at first performed before the house of any
         person of advanced age who married a second time.

Source : WordNet®

charivari
     n : a noisy mock serenade (made by banging pans and kettles) to
         a newly married couple [syn: {shivaree}, {chivaree}, {callithump},
          {callathump}, {belling}]