Greasy or sweaty hair matted to ones head after wearing a hat for a prolonged period (generally a baseball cap).
by Plebescite September 3, 2003

a particularly shitty male haircut in which the sides cover the ears and the hair appears to be "snap on".
by daniel hanner January 2, 2007

A place for a female to sit that comprises a man's lap and, specifically, his erect manhood. Use of this phrase usually implies that more than just sitting (namely, boning) is underway.
by Nicholas A. B. June 30, 2008

The hair fang is a common hair style among emo and hxc crowds. it is typically dyed black, and covers one eyeball in order to create a mysterious and dark look.
hey dude! that's such a good hair fang ! you look so mysterious! you probably eat bats and stuff huh?!
by Dr. Jim Halpert the third December 12, 2006

When a female ties a male down on a bed or couch by his hands and feet while he is naked and rubs her hair on his body. Starting with face, then chest, the legs, and then jerking you off with e all her hair until you cum or are about to cum and she starts it all over. This is done by girls with very long, soft, silky hair.
"Hey man, did you and Emma enjoy yourselves last night?"
"Dude, it was amazing, she knows I have a hair fetish so she tied me down naked not telling me what she was doing, she then proceeded to rub all her long, soft, silky hair on my body, when I thought it couldn't get any better she started jerking me off with all her hair. I was about to cum then she stopped and started rubbing it on my body again. I was tied up so I couldn't stop her if I wanted to, though of course I never wanted it to end. It was the best hair sex EVER!"
"Words can't express how jealous I am…"
"Dude, it was amazing, she knows I have a hair fetish so she tied me down naked not telling me what she was doing, she then proceeded to rub all her long, soft, silky hair on my body, when I thought it couldn't get any better she started jerking me off with all her hair. I was about to cum then she stopped and started rubbing it on my body again. I was tied up so I couldn't stop her if I wanted to, though of course I never wanted it to end. It was the best hair sex EVER!"
"Words can't express how jealous I am…"
by TheCookieFoox February 26, 2017

The Phenomenon of the fringe being lifted to great heights without the aid of gel caused by having been sitting with one's head resting on one's non-writing hand for the extended time required to complete Physics problems.
*Upon running into a Physics room-mate in the kitchen at 2am exhibiting the symptoms:
"Wow, dude. Nice Physics hair."
"Wow, dude. Nice Physics hair."
by seeco March 15, 2010

by patsguy March 31, 2011
