An anti-eyebrow is a body piercing

Body piercing

Body piercing, a form of body modification, is the practice of puncturing or cutting a part of the human body, creating an opening in which jewelry may be worn. The word piercing can refer to the act or practice of body piercing, or to an opening in the body created by this act or practice...

. Normally it is a small surface bar that is placed above the cheek

Cheek

Cheeks constitute the area of the face below the eyes and between the nose and the left or right ear. They may also be referred to as jowls. "Buccal" means relating to the cheek. In humans, the region is innervated by the buccal nerve...

 bone or below the eyebrow

Eyebrow

The eyebrow is an area of thick, delicate hairs above the eye that follows the shape of the lower margin of the brow ridges of some mammals. Their main function is to prevent sweat, water, and other debris from falling down into the eye socket, but they are also important to human communication and...

. This piercing can be vertical or horizontal, depending on the person's preference. Though it is a surface piercing

Surface piercing

Surface piercings are any body piercings that take place on the surface sewn into the body through areas which are not particularly concave or convex, where the piercing canal transverses a surface flap of skin, rather than running completely through a piece of body tissue from one side to another...

, with proper care, placement, and jewelry, it can be a viable long-term piercing.

Anti-eyebrows are also known as upper cheek piercings, tears, and teardrops or butterfly kiss.