1. a wild, drunken celebration or party; an orgy of drinking and revelry
Usage: usually plural; often capitalized when referring to the ancient Roman festival of Bacchus

Examples

• The college students threw a bacchanalia in the dormitory that lasted until dawn.
• The ancient Romans celebrated the Bacchanalia with processions, music, and excessive drinking.
• After winning the championship, the team's bacchanalia went on for three nights straight.
• The festival turned into a bacchanalia of excess and indulgence.
• Historical accounts describe the Bacchanalia as both religious ceremony and wild celebration.
• The mansion's bacchanalia shocked the conservative neighbors.