As in Parachute for shit. The attachment of toilet paper to the base of a rather heavy turd before you cut it loose, thus reducing splash-back and entry noise. A useful technique if you need a heavy evacuation in somebody else’s home and householders are loitering near to the toilet door.
I needed to drop a heavy load, I had no other choice but to pinch on a Shitchute before I let her go.
by Tony Law March 01, 2008