square stocking
n.— «More than 25,000 Christmas boxes, affectionately know as “square stockings” have been dispatched to British troops on active service overseas.» —“Christmas Boxes Prepared For UK Troops” in London, England British Satellite News Nov. 30, 2006. (source: Double-Tongued Dictionary)
Further reading
Is there something inherent in English that makes it the linguistic equivalent of the Borg, dominating and consuming other languages in its path? No, not at all. The answer lies with politics and conquest rather than language itself. Plus: a new...
Mike in Ukiah, California, grew up in the UK, where he often heard the expression to know your onions, meaning “to be knowledgeable about something.” He suspects the phrase is rhyming slang, but It’s most likely one of many...