A Houdini Torpedo is when you drop a
Deuce in the toilet
bowl and the trajectory and velocity of the fecal matter leaving ones anus causes the elongated mass of shit to disappear out the drain pipe without leaving any evidence of its existence in the
bowl.
Honey, you won't believe what just happened, I took a
crap and after wiping my shit stained ass , I placed the used toilet
paper in the
bowl only to realize I produced a Houdini Torpedo, it was like majic , my shit had completely disappeared ! I