poo cushion 

a poo cushion is a temporary toilet seat cover made from sheets of toilet paper and it is used when making a poo in a public toilet is unavoidable and you don't want to have to sit your bare bum on the seat.

that toilet was really unclean so I used a poo cushion to be safe

poo cushion by Patrick Bateman November 11, 2013

Poocussion 

Poo.cus.sion \pü-kə-shən\

When one incurs a concussion upon smelling feces and experiences moments of extreme and ambiguous disorientation (not to be confused with 'Poocushion')

Example One:
Thaddius - "Hey man, you weren't making any sense yesterday after you left the bathroom at Chili's"

Cam - "...oh no, I must have suffered a Poocussion"

Example Two:
After experiencing a severe case of Poocussion of the most seldom occurrence Frank stumbled around the apartment for the rest of the afternoon mumbling to himself.

Frank - "I'm gonna, I'm gonna, I'm gonna, I'm gonna, aahh I'm gonna...gonna, gonna (sigh)"

Poocussion by Principal Midget December 13, 2010

Poopcushion 

The last pocket of air separating the poop from the anus.

Don’t fart away your poopcushion or you won’t be able to hold in your shit!

Poopcushion by Awayne8088 February 22, 2019