Definify.com
Webster 1913 Edition
Saturnalia
1.
(Rom. Antiq.)
The festival of Saturn, celebrated in December, originally during one day, but afterward during seven days, as a period of unrestrained license and merriment for all classes, extending even to the slaves.
2.
Hence: A period or occasion of general license, in which the passions or vices have riotous indulgence.