When one needs to break up their current activity for the sole purpose of defecation.
"Dude, we gotta stop this jog and find some bushes for a shitstop. I got a growler the size and temper of grandma coming."
shitstop: noun: something you do before anal sex. as in "hold on i gotta take a shitstop before we go any further"
as in "hold on i gotta take a shitstop before we go any further"