What is a common name for the hair style that involves twisted hair forming a rope-like effect?

The hairstyle that features twisted hair to create a rope-like effect is commonly known as "locks." Locks, often referred to as dreadlocks, are formed by sectioning the hair and twisting it into cylindrical shapes, resulting in a distinct, textured appearance. This style has cultural significance in various traditions and can be maintained through a specific grooming process that encourages the hair to mat and form these ropelike strands.

While braids also involve twisting sections of hair together, they typically have a more structured and interwoven appearance, which differentiates them from the more free-form style of locks. The other options provided, such as pompadour and afro, do not describe the rope-like effect characteristic of locks. The pompadour is known for its lifted style that involves volume at the front and smoothness at the back, while afro refers to a naturally curly hairstyle that is full and rounded. Thus, locks is clearly the most accurate description for a hairstyle characterized by twisted hair forming a rope-like effect.