This trope refers to film and music videos where the lead female actor or musical performer is slender or trim, but has a distinctively low waist-to-hip ratio, and where the film or video consistently obscures her distinctive figure with a range of filming and production techniques.
Notable examples: Jennifer Lopez and Beyonce. Their full profiles front-on or side-on are rarely seen in film or video. Camera shots are head and torso only, angled so the perspective affects waist to hip or butt dimensions, or cut to new angle/scene before any 'full reveal' of body shape might occur.
The music videos for Nicki Minaj are examples of a counter-trope.