bacchanalia bacchanalia /ˌbækəˈneɪljə/

noun

1. A wild gathering involving excessive drinking and promiscuity  ( bacchanal , bacchanalia , debauchery , debauch , drunken revelry , orgy , riot [Archaic] , saturnalia )
   a wild gathering involving excessive drinking and promiscuity
    The city's nightlife is infamous for its wild debauch.
   The city's nightlife is infamous for its wild debauch.
   
   

 Bacchanalia

1. An orgiastic festival in ancient Greece in honor of Dionysus (= Bacchus)  ( Bacchanalia , Dionysia )
   an orgiastic festival in ancient Greece in honor of Dionysus (= Bacchus)