see also: Facial StylesThe Five-o'-clock shadow is the stubble or scruff that appears just before dinner if you shaved that morning. Of course for every man the rate of growth is different (on average, facial hair grow one-quarter inch per month), but the idea behind the Five-o'-clock shadow is that some men feel the smoothness of the morning shave has worn off by the end of the day. You may think a Five-o-clock shadow can look good on some men, but don't be surprised if your significant other rejects your amorous advances when she sees your stubble. Many women say they don't mind the look of scruff, but getting close to it is another story altogether.