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1 definition by Jim Be

 
1.
D2
Every sinlge person is born with a fully functional D2, there have been very few recorded cases where a D2 has been under developed.

R2 is also part of the equation.... rare cases are 10% of the human body consistes..... dumbass
your sons D2 is fully developed, congratulations.
by Jim Be April 18, 2007