(military) To untuck (leggings from footwear); to make (pants or trousers) unrestricted or untightened at the ankle, often as a sign of rank or service.
2002, Jack Allsup, Mountains of Hope, page 50Some straight legs caught a trooper at the post exchange (PX) one day and made him unblouse his boots.
2003, Edward F. Fitzgerald, Bank's Bandits, page 162"Alright men. Lay your ponchos out on the ground and take everything out of your rucksacks. Empty your pockets, too. Everything goes on the poncho. Hurry up! We haven't got all day. "You, Parker! Unblouse those boots. Do it! What's all this shit? Cans of Spam. Tuna fish. Nice try, Asshole. Okay, everybody. Unblouse those boots."
2004, Ed Ruggero, Combat Jump: The Young Men Who Led the Assault Into Fortress Europe, July 1943, page 89Not only were the soldiers not allowed to tell anyone what was happening, but they had to remove their shoulder patches and the airborne patches from their hats, take off their jump wings, and unblouse their trousers to hide their jump boots.
2006, Major Richard D. Winters, Beyond Band of Brothers, page 37In front of the entire regiment, the condemned trooper was forced to unblouse his trousers, remove his airborne boots, and replace them with regular shoes.
