An "ulta hair cut" is a noun that refers to a type of haircut that involves cutting hair from the underside. This technique creates a voluminous, layered look that is often seen in styles like the shag or the mullet.
Ulta hair cuts are popular because they can add volume and texture to fine or limp hair, and they can also be used to create a more edgy or dramatic look. Historically, ulta hair cuts have been worn by both men and women, and they have been particularly popular in the punk and rock music scenes.