When someone takes a shit in the toilet and it sticks
to the bowl and still is not removed after flushing, therefore
appearing permanent like a tattoo. Shit + tattoo equals shattoo.
Person 1: "Yo hold it dawg let me take a dump"
Person 2: "Okay man"
Person 1: "Ahh nasty dude I can't go in there someone made a
shattoo"
Person 2: "Sorry"
The best way to prevent the acquisition of a shattoo is to use a bidet regularly - toilet paper alone will only rub the shit pigments into the skin surrounding the anus.
Jenifer:Dude, I heard Lydia shatooting today.
Holly: What the fuck is shatoot?
Jenifer: It's like sharting with a little less shit and a little more toot.