The phrase "boyish figure" refers to a body shape or appearance that resembles that of a young boy, often characterized by slimness, lack of curves, and a more angular or straight-lined physique. Full definition
Swing coats are very flattering for boyish figures just like Audrey's, because it's defined waistline and bell shape bottom creates the illusion of shape. (cutandchic.com)
To my surprise, they fit my straight / boyish figure pretty well and the material was thick and comfortable. (fauxionista.com)