POOP:
Hold out your left hand in a "fist
handshape" with the thumb of the right hand stuck up into the um...the ...er
"hole" of the pinkie side of the left fist handshape. And then move the right
hand downward with a ...uh..."plopping" type movement. That should do it.
Note: The movement should be in the right hand only. My left hand moves a
bit in this pic, but really you don't want to be moving the left hand while
doing this--it could get messy.
Also see: "pee"