Orgies

n. gathering at which the participants take part in wild revelry and debauchery, party with excessive drinking and promiscuity; any activity which is done in a extravagantly indulgent way; sacred religious rites of worship that included wantonness and wild promiscuity (Greek Mythology)

An orgy (όργιον) was a secret cultic congregation at nighttime in Ancient Greek religion, overseen by an orgiophant.
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Noun
1. any act of immoderate indulgence; "an orgy of shopping"; "an emotional binge"; "a splurge of spending"
(synonym) binge, splurge
(hypernym) indulgence, indulging, pampering, humoring
2. secret rite in the cults of ancient Greek or Roman deities involving singing and dancing and drinking and sexual activity
(hypernym) rite, religious rite
3. a wild gathering involving excessive drinking and promiscuity
(synonym) debauch, debauchery, saturnalia, riot, bacchanal, bacchanalia, drunken revelry
(hypernym) revel, revelry

n. orgy, bacchanalia, gathering at which the participants take part in wild revelry and debauchery; any activity which is done in a extravagantly indulgent way; sacred religious rites of worship that included wantonness and wild promiscuity

(pl. )
of Orgy
  

(n. pl.)
Drunken revelry; a carouse.
  

(n. pl.)
A sacrifice accompanied by certain ceremonies in honor of some pagan deity; especially, the ceremonies observed by the Greeks and Romans in the worship of Dionysus, or Bacchus, which were characterized by wild and dissolute revelry.