The act of filling a toilet bowl with a large amount of toilet
paper and then proceeding to defecate onto it, thus causing the
turd remain afloat. The feces surrounded by toilet
paper symbolizes Baby Jesus wrapped in blankets in his manger. The poop manger is then left there for the unsuspecting victim to encounter.
"I sure showed those guys."
"What did you do?"
"I snuck into their
bathroom and left them a poop manger,
poor bastards
never saw it coming. I'd hate to be the guy to clean that up."