"Brown eyeshadow" refers to a cosmetic product that is used to color the eyelids and enhance the eyes. It is a makeup item in a shade of brown that is applied to the eyelids, often to create a natural or neutral eye look. Full definition
For my eyes I used a dark brown eyeshadow on my lids and a mix of brown and red on my bottom lash line to make my eyes look blood shot. (whatsarahwrites.com)
For a bolder look, use an angled stiff brush and wet it before you fill your brows in with matte brown eyeshadow. (stylecraze.com)
Use brown eyeshadow on top of this with the help of a brush. (stylecraze.com)