Terminology used to typically describe a caucasian male who has the innate ability to move in on the female lovers of black men and successfully steal them away. Such a man is often blessed with a particularly charismatic swagger, uncompromising tenacity, advanced sexual skill and perhaps most importantly a penis so epic in proportion that it often easily out-impresses any Afrocentric competiton.
Person 1: "Check it out, it only took cracka a week to turn that ho out."
Person 2: "Fuckin' shadow bumper!"