Minä syön lohta, EN kinkkua tänä jouluna.

En osallistu siis muiden kanssa Saturnalia rituaaliin, jossa uhrattiin possu.

"After the public rituals, observances continued at home.[14] On 18 and 19 December, which were also holidays from public business, families conducted domestic rituals. They bathed early, and those with means sacrificed a suckling pig."

The Sigillaria on 19 December was a day of gift-giving. Because gifts of value would mark social status contrary to the spirit of the season, these were often the pottery or wax figurines called sigillaria made specially for the day, candles, or "gag gifts", of which Augustus was particularly fond. Children received toys as gifts
https://en.wikipedia.org/wiki/Saturnalia