Where one voids his or her bowels, only to find, by wiping one's anus, that no evidence of the event remains. Not as rare as immaculate conception, but still magical.

Cletus found, after taking a huge shit, that his first wipe was completely clean. "Hallelujah!" He exlaimed, "Immaculate defecation!"
by puppy hugger February 07, 2009
Get a Immaculate Defecation mug for your Facebook friend Rihanna.
When one does a shit and then wipes their ass and miraculously it's already pristine and clean.
Immaculate Defecation.
{shit} {crap} {butt} {defecate} {immaculate}
by slipkid69 February 01, 2018
Get a Immaculate Defecation. mug for your friend Vivek.