Pigtail

A young, unmarried, Chinese girl would often wear two buns, or bundles of hair on either side of the head to display her availability to prospective husbands.

Bunches (also called pigtails, bunchies, twintails or angel wings) are a hairstyle in which the hair is parted down the middle and gathered into two symmetrical bundles, like ponytails, secured near the scalp.

Anime and manga characters sporting twintails have been prevalent since the 1960s, and the hairstyle has since entered mainstream culture, in part due to Vocaloid Hatsune Miku embracing the look.

[3] This includes the creation of a "Japan Twintail Association" to promote and celebrate the hairstyle, as well as running photo spreads of models sporting the dual tails.

[3] "Twin Tail Day" is officially recognized by the Japan Anniversary Association and falls on February 2, when girls post images of themselves with the hairstyle onto Twitter.

A woman with long pigtails and braids .
Bedouin woman with pigtails, 1880s.
Sometimes the portrayed hairstyle is referred to as "pigtails" in general, while "bunches" is more specific as they are unplaited.