look up any word, like blumpkin:
 
2.
A washroom game where the one who is it, leaves a poop in the toilet without flushing*. You become it when you walk into the washroom to find a poop that has not been flushed. You must then continue the cycle of poo-tagging, either in a new location, or right away.

*Bonus kudos for leaving a poop that isn't covered up by toilet paper. The grosser, the better the revenge.
Bro, I got poo-tagged today at the mall, now I gotta leave some poop at a McDonald's to hopefully poo-tag some fat-ass after his big mac.
by kransack August 28, 2011
 
1.
when having a bath the crusty poo melts off your bum and u try to move the poo chunk toward the drain but the poo resists all motion and u can never quite catch it.
If u wipe yo ass you will never need play poo tag ever again
by MikeBoulding January 14, 2007
 
3.
You wipe your finger across your bum hole and poke someone with it.
It's like playing tag only involving some poo. Therefore "Poo Tag".
by 4DY May 26, 2013