That extra "umph" that people of a certain skin color possess that allows them to soar to the top of high jumps, the end of finish lines, the most baskets per game, and for small skinny guys to bench twice as much as big white guys.
Jamaican sprinter Usain Bolt was recently tested for several steroids, after his astounding triple gold medal finish at the 2008 Olympics. Scientists were puzzled by the absence of performance enhancing substances such as desoxymethyltestosterone, or bolandiol, and were shocked to discover enormous levels of Vitamin B in his blood.
Similar examples can be used by replacing Usain Bolt with Michael Johnson, Carl Lewis, Magic Johnson, Tyson Gay, Terrell Owens, Jerry Rice, and That Black Guy.
Slang for the great Aussie Beer VB (victoria Bitter) offen used by die hard VB drinkers
person A: There going to be goon at the party?
Person B: #&%# No, Vitamin B only Bruzz!