orgy

(noun) any act of immoderate indulgence. Synonyms: binge, splurge. Examples: "An orgy of shopping." "An emotional binge." "A splurge of spending."

(noun) secret rite in the cults of ancient Greek or Roman deities involving singing and dancing and drinking and sexual activity.

(noun) a wild gathering involving excessive drinking and promiscuity. Synonyms: debauch, debauchery, saturnalia, riot, bacchanal, bacchanalia, drunken revelry.