hair forest
When a chick has sprayed her hair so heavily at the roots with hairspray so as to create what appears to be a hair forest of small trees growing from her scalp. This was very popular in the 80's and has a following in women who are of that generation.
Check out the hair forest that chick is sporting. Doesn't she know that her hair went out in 1985!
forest hair
A hairstyle in which a girl's hair is tousled so that she looks like she lives in a forest or similarly uninhabited area. Extremely sexy. (Budding twigs and leaves can be added for effect as desired.)
Oh shit! Dude, forest hair girl sat next to me in class and I almost creamed my pants. Looks like I'll need to make a trip to the great outdoors...