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1.
A wad of toilet paper placed in the toilet BEFORE pooping used to prevent your own poop from splashing toilet water on your ass.
I always drop a poop pillow before shitting in a John Q. Public.
by John 1-2 November 05, 2008
 
2.
The act of pooping on a pillow, then shuvin yo sexual partners face into it.
Bill "Dude, Sally wasn't that good last night. So I gave her a poop pillow."
by Bernard the wet slapper January 20, 2008