Tomorrow, January 6, is Twelfth Night, and for many people the unofficial end of the Christmas season. But for a certain group of readers January 6 has another significance: It marks the presumed birthday of the greatest fictional character of modern times, Mr. Sherlock Holmes, the world’s foremost consulting detective. Seventy five years ago Christopher Morley—the most popular literary journalist of his time—established a small sodality of Sherlockian enthusiasts that soon came to be called the Baker Street Irregulars. Before long this group started to meet for regular sluicings and carousings and Sherlockian disputation on the Friday nearest to January 6. That tradition has never ceased, and on Wednesday I travel to New York for the diamond jubilee of the BSI.
From the WaPo. But what is "sodality"? And what is a "sluicing"? Is that, like, transitive or something?