Sharting while running outdoors, or frantically shuffling to the restroom, leaving a trail of shit you can follow back to where you came from, if need be.
"Dude! Coach ran me so hard at practice that I left a Hansel and Gretel all the way from the field house."
"Bill ate tacos for lunch and within 10 mins, he had Hansel and Greteled a path from his desk to the bathroom"
A class of excrement which leaves a telltale spiral trail around the toilet bowl as it drains, so that it might find its way back home.
The janitor went through 3 cans of AJAX in an attempt to remove a particularly stubborn hansel and gretel trail from the new porcelain White House toilet.