Cotyttia

Cotyttia (Greek: Κοτύττια, Kotuttiā) was an orgiastic, nocturnal religious festival of ancient Greece and Thrace in celebration of Kotys, the goddess of sex, considered an aspect of Persephone.

[1][2] Cotyttia originated with the Edones as a celebration of the rape of Persephone.

[2][3] Throughout Thrace it was celebrated secretly in the hills at night,[4][5][6][7] and was notorious for its obscenity and insobriety.

[3] Through influence of trade and commerce, the Edonian form of the festival spread to Athens, Corinth, and Chios,[1][2][7] where its mark became so pronounced that "companion of Cotytto" became synonymous with "slut".

[6]