Beards like that from jack "cuck" murphy where left and right sides are white and the middle part is normal colored.
Tongue can't reach left and right side to clean the zinc leftover up, which he got from eating out his gf after she met Matt from Tinder.
Have you seen Jack "cuck" Murphy? He got a nice zinc beard.
Guess Jack "cuck" Murphy came up with the idea of a zinc beard while he got a dildo stuffed in his ass, like when he did porn or got rammed by another guy.