square stocking
n.— «Soldiers, sailors and airmen from the Duke of Lancaster Regiment at Basra Airport will be getting one of 24,500 Christmas gift boxes, or “square stockings” as they are affectionately known, sent out by the Ministry of Defence.» —“Soap Star Jennifer Is A Real Trooper” Evening Mail (Cumbria, United Kingdom) Nov. 30, 207. (source: Double-Tongued Dictionary)