1 a wild drunken festivity at which indiscriminate sexual activity takes place.
2 excessive indulgence in an activity.
3 (usu. in pl.) Gk & Rom. Hist. secret rites used in the worship of esp. Bacchus, celebrated with dancing, drunkenness, singing, etc.
Etymology: orig. pl., f. F orgies f. L orgia f. Gk orgia secret rites
Useful english dictionary. 2012.