Dreadlock noun (used with a plural verb)
a hairstyle, esp. among Rastafarians, in which the hair is worn in long, 'rope like' locks.

origin:
1955-60; DREAD + LOCK

pl. n.
Dreadlocks
1. natural hairstyle in which the hair is twisted into long matted or rope like locks.
2. A similar hairstyle consisting of long thin braids radiating from the scalp.

Dread locked adj.