A large evacuation of liquid fecal matter closely resembling that of diarrhea but on a more explosive scale. Poop Finger can occur instantly and without conscious thought or decision. Poop Finger is directly caused by someone preparing your food after wiping their ass but before washing their hands.
Damn, the dude that prepared my filet-o-fish sandwich at McDonald's must have given me Poop Finger because I've been sneezing out of my ass for the last two hours.
by me.....)()( January 01, 2008