The term 'loose shirt or dress' can be summarized as a KAFTAN, which is a type of garment originating from the Middle East and North Africa. It is typically made of light fabric and has long, wide sleeves and a V-shaped neckline. It is often worn as a loose-fitting garment and is usually decorated with embroidery or other embellishments. Kaftans are popular in many cultures and are often seen as a symbol of elegance and sophistication.