fescennine
Obscene or scurrilous.
[T]he frolicsome company had begun to practise the ancient and now forgotten pastime of High Jinks. This game was played in several different ways. Most frequently the dice were thrown by the company, and those upon whom the lot fell were obliged to assume and maintain, for a time, a certain fictitious character, or to repeat a certain number of fescennine verses in a particular order.
Where it comes from
From Latin Fescennīnus, from the name of the ancient Etruscan town of Fescennia, noted for the "Fescennine Verses", a tradition of scurrilous songs performed on special occasions.
Adapted from the Wiktionary entry fescennine (CC BY-SA 4.0).