pinch one off 

1. To quickly squeeze out a shit
2. To pinch off the end of a rather large shit in order to be done quicker.

Jerry had to pinch one off as the game started in ten minutes.

pinch one off by Anonymous April 12, 2003

pinch one off 

v. having a bowel movement, the act of pinching off a turd

After chugging his cup of morning coffee, Teddy had to pinch one off.

pinch one off by Money Mark August 22, 2006