look up any word, like dirty sanchez:
 
2.
How a girl's hair looks after she has had sex. It's wild, and sticking out everywhere. Any clips or accessories she had in her hair have fallen out or are out of place.
After I have sex with my boyfriend, I totally have fuck hair.
by yorkmom February 16, 2010
 
1.
The messy, snarled and sweaty hairstyle one has
after getting a proper and vigorous fucking.
I know EXACTLY why you're late! Your fuck hair says it ALL!!!
by Scrappy SamCat January 27, 2009