The act of pooping and not washing your hands before leaving the restroom, then rubbing your hands on another persons face while announcing that you indeed have poopy hands. Usually immediatelyfollowed by the antagonist singing the poopy hands song.
Adam: Hey Grant, guess what?
Grant: What?
Adam: gently caresses Grant's face I just went to the restroom and I have poopy hands! Oh you love poopy hands, poopy hands on your face.
In LOST, when a character places a handgun in the back of their pants, they risk exposure of fecal molecules to the gun. Later handling of the firearm could then spread said fecal matter to hands, and in turn to eyes and/or mouth, causing illness or infection.
Kate:"Wow, Sawyer, looks pretty sick after waving his gun around."
Jack:"I think we have an acute case of Poopy Handgun Syndrome on our hands. Literally, on our hands."
Kate:"Gross. I'm not banging that dude in the bear cages again. How do you know it's PHS?"
Jack:"Cause I'm a God Damn Doctor, that's how!"
when you go to wash your hands and you smell something weird. then you go look in the toliet and see someone didnt flush the time befor you. (not usable in a port-a-potty)
Pooping in a bag or some sort of transporting device then proceeding to find a park car, rub the poop on one or all of the door handles then watch as the driver/passangers get poop on their hands. Don't leave until you see the whole situation unfold. They may not realize it's poop at first. You can also use animal poopy if your not up to pooping into something.