What is a tuft of hair that stands straight up called?

A tuft of hair that stands straight up is referred to as a cowlick. This term describes a section of hair that grows in a different direction from the rest, causing it to stick up or lay differently, often creating a unique style challenge when cutting or styling hair. Cowlicks are typically found at the front hairline or the back of the crown and can vary in flexibility. They are often considered a natural feature of hair growth and can influence the way a haircut is shaped or styled. Understanding cowlicks is essential for barbers, as they need to account for this during haircuts to achieve the desired look for their clients.