Person 1: Hey Bro Did you see that hot White Girl.
Person 2: Yes She Has Us Thirsting Bad Bro We Need To Hit That.
Person 1: Definitely And She Got It All Going On And is The Black Man's Kryptonite
A wank which leaves a person exhausted and weak because of the repetitive, strenuous motion of the arm.
The person ends up almost as weak as Superman when he is exposed to Kryptonite.