"'Well,' continued Captain Aubrey, 'Diane shipped no widow's cruse. And by that I mean tomorrow is St. Famine's Day.' Comprehension, alarm, despondency, extreme displeasure showed in the faces of all the old man-of-war's men present; and the hum of whispered explanation kept Jack silent for a long moment. 'But it is not the worst St Famine I have ever known,' he went on. 'Although it is true that today's is the last issue of grog and the last cheese-paring scrap of tobacco, we still have a little biscuit and a cask of Dublin horse not very badly spoilt...'"
--Patrick O'Brian, The Nutmeg of Consolation, 53
I've listed the word here with a period after "St." even though O'Brian's books don't use periods after titles or abbreviations such as Mr or Mrs.