orgiastic
adjective /ˌɔːdʒiˈæstɪk/
  /ˌɔːrdʒiˈæstɪk/
[usually before noun] (formal)- typical of an orgy- the orgiastic worship of the fertility god
- orgiastic delight
 Word Originlate 17th cent.: from Greek orgiastikos, from orgiastēs, agent noun from orgiazein ‘hold an orgy’.