Top Definition
When your grandpa poops, saves it for 8 years, bakes a pie with it, then you take it and shove it roughly inside your asshole

Pronounced: PIH - STOO - FLEE
"Finally, the pistuffley is complete! Thanks grandpa! I love you with all of my heart!"

"Anytime, sonny boy."
by Matt Markel May 20, 2008
6 Words related to Pistuffley

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