a common reference to the action and state of mind when one is either street racing in their automobile, or ont the track. the physical meaning is reference to the pigment of ones knuckles fading from holding the steering wheel tightly. the mental reference is due to the edgy state of mind one is in, when in a similar situation.
"One hundred plus through Black and White
War Horse, Warhead
Fuck 'Em Man, white knuckle tight
Through Black & White" -metallica