The bullshit theory that white people cant play sports, fight, rap, and overall suck. Mostly used by "gangstas" in the "hood". Coined by eminem in his book The Way I Am.
White boy: Yo lemme play ball wit' you guys
Black Boy: Hell no nigga, Crackas' cant play ball
White boy: Fuck you, that's White Men cant jump theory.
Black Boy: Hell no nigga, Crackas' cant play ball
White boy: Fuck you, that's White Men cant jump theory.
by Wade Zabell December 31, 2011