Redhead usually denotes a woman with red hair, especially of the stereotype, since it's more or less a pejorative. If used for a man, it's usually to make fun of him for being redheaded.
In many men it evokes a certain traditional image of a beautiful pale skinned woman with long, red, curly tresses and a certain amount of freckles.
, look at that redhead.
November 26, 2005