dreadlock

/ˈdrɛdˌlɑk/
noun
  1. A long, thin strand of hair that has been twisted or matted into a rope-like shape, often worn as a hairstyle.
    • Many people associate dreadlocks with Rastafarian culture.
    • He spent hours maintaining his dreadlocks to keep them neat.
    • She wore her hair in long dreadlocks that reached her waist.