the side door 

(noun) Taking a poo on one side of the toilet seat, facing the wall. On a 90 degree angle from the regular pooping position (RPP). Usually in desperation, due to skid marks or pubes on either side of the toilet seat.

"I was forced to use the side door because there was shit stains on the front of the toilet seat."
- Joe-fizzle

the side door by ly ly and joe-fizzle February 19, 2009

Left the Side Door Open 

When someone leaves their colostomy opening exposed allowing for sexual penetration in lieu of sodomy, due to the rerouting of the anus.

I wasn't feeling frisky but I left the side door open just in case.

Left the Side Door Open by All Bets Hedged January 6, 2021