When a person has to go to the bathroom to poop, although does so in such a short span of time that no one has time to notice
"Dude, I was in the middle of a meeting and felt something coming. I slipped out of the room, took a Ninja Poop, and was back before anyone even noticed I left."
12👍 7👎
A poop that sneaks up on you when least expected!
Man 1: oh! (runs)
Man 2: Where is he going?
Man 3: Bathroom. That was a ninja poop.
9👍 7👎
A two person game in which one person lies on their back with pants either off or around their ankles, shooting projectile turds from their anus at player two, whom of which has a sword in hand in the hopes of cutting the projectile turds out of the air a la fruit ninja.
Jim: Hey Sarah, want to play a rousing game of poop ninja?
Sarah: Sure Jim! Just give me 25 minutes to finish digesting my lunch.