Ponytail (noun)

A hairstyle in which the hair is gathered and fastened with a band or clip at the back of the head, leaving the hair hanging down in a long tail.

Origin:

19th century: from pony + tail.

Examples:

1. She wore her hair in a ponytail to the gym.
2. The ponytail was a simple yet elegant hairstyle.
3. He wore his hair in a ponytail as a sign of rebellion.
4. The ponytail was a popular hairstyle among young women.
5. She secured her ponytail with a simple elastic band.