look up any word, like fleek:
When one initially goes to urinate only to realize the pressure applied is pushing feces dangerously close to exiting the anus, requiring a quick turnaround into the sitting position.

Phenomenon is almost solely observed in males, although is occasionally practiced by females in hardcore porn.
It was quite embarrassing having to make a poo-turn from the urinal to the stall at the office.
by SHLA April 28, 2011
to flush, zip and exit the stall only to realize there's more. . .
"I had to make a poo-turn when that chili dog came through."
by skukuza May 24, 2007