magic booster bag n.—Gloss: Same as booster bag. «It looks like a simple bag on the outside. Once you look inside, you’ll discover the bag is a complex shoplifting tool. “They’ve got aluminum foil, ductwork and gray duct...
booster bag n. a bag, sack, pouch, purse, or box used by a shoplifter to conceal or disguise merchandise. Etymological Note: to boost ‘to steal; to shoplift’ + bag (source: Double-Tongued Dictionary)