A younger man or with a longer, shaggy or full hairstyle typical of the sexy fuller male hairstyles common in the 1970's. (This term should never apply to a female.)
Those shaggy surfer guys in California were real hair dudes back before cell phones were in fashion.
by Jon64Bailey March 05, 2012
Some dude that is completely in love with his/her hair. They allways are touching their hair.
"Dude that dude is such a hair dude, dude."
by Kane G. March 19, 2005