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1 definition by The Percher

 
1.
When one is performing coitus on a pregnant female from the rear, one tapes knives to his hands while the female isn't looking. Then one flips the female on her back and using his "knife hands" proceeds to rip the baby out of her. The man is now cover in blood and has rudimentary claws and is presumably in Boston, well not really.
A coked up midget told Josh Landes all about the Boston Crab.
by The Percher November 16, 2008
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