http://www.cnn.com/2006/LAW/02/21/scotus.abortion.ap/index.html

Q. Critics call it partial-birth abortion. What do you think of that?
A. The actual medical term for this procedure is "Dilation and Extraction" or simply D&X. The term "partial-birth abortion" was manufactured by opponets to women's health and attempts to ... the simple procedure of partially delivering a baby and sucking its brains out.

Q. Why don't you call it "brain sucking abortion" instead of D&X?
A. Because that's not medical sounding. Sucking out a baby's brains is a complicated process and requires a complicated name.

Q. Don't babies need brains?
A. It considers what purpose you have in mind for said babies.

Q. Since the whole body is already out, why not just pull the head out and deliver the baby?
A. For one thing, that defeats the whole point of an abortion. Also, about any doctor could do that, so I simply couldn't charge as much for that. Finally, if I'm just delivering babies, what in the world am I supposed to do with the brain sucking device I spent good money on?

Q. Why not fully deliver the baby and then suck out the brains?
A. Babies that have been fully delivered tend to squirm more and also make more noise. Beyond the practical considerations, though, it's only considered an "abortion" if the brains are sucked out while the baby is still partially in the mother. Otherwise, it's legally "infanticide" which is frowned upon in some cultures.