booster bag
n.β Β«During the raids, police seized booster bags worn under womenβs dresses to conceal goods shoplifted from stores. “They could get articles as large as fur coats, video recorders, computers, fax machines, 20-piece bone china setsβright under the skirt and out the door.”Β» ββ39 arrested in joint probe of inter-city theft ring” by Henry Stancu Toronto Star (Can.) July 12, 1989. (source: Double-Tongued Dictionary)