A hair fetish is having the need for the object of one's affections to have a special type, colour, style, etc; of hair in order to be found attractive. This fetish is not exclusive to guys, as many girls find guy's hair to be a major turn-on.
~Example of hair fetish~
Alexan: "Why don't you like him? I thought he was cute!"
Figure.10: "Urg..yeah..but he had a fucking crew-cut and...."
(sees guy with awesome hair)
"HOLY CHEESE MOTHER!"