refers to the most sexually-attractive star-actresses of an era, who would be popularized in seductive poses usually semi- clad - in pictures, calendars, or mass-produced posters that were usually literally "pinned-up", usually with thumbtacks, on bedroom walls, the insides of lockers, and so forth; this practice started especially amongst GI servicemen away from home during military combat who pined for the 'girl-back- home'; related terms are cover girl (for magazine covers), model or cheesecake