/ ˈɔːdʒi; NAmE ˈɔːrdʒi/ noun ( pl. -ies )
1.
a party at which there is a lot of eating, drinking and sexual activity :
a drunken orgy
2.
orgy (of sth) ( disapproving ) an extreme amount of a particular activity :
The rebels went on an orgy of killing.
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WORD ORIGIN
early 16th cent.: originally plural, from French orgies , via Latin from Greek orgia secret rites or revels.