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The occurance of needing a turd so badly that you let a little bit of shit out of your anus and it gets smeared all around your crack. The ass itself when looked at, then has the appearance of a peanut butter sandwich.
"Ive got such a peanut butter sandwich right now."

As the naked man bent over, the onlookers cried "Oh my god hes got quite a peanut butter sandwich."
by TehMuel October 20, 2007
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2
the act of shitting between the boobies of your partner and then proceeding to tit fuck her.
what happened to your peanut butter sandwich.....oh i gave it to your mom:)
by Josiah, Alexander November 25, 2008
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3
when ones head is inserted into womans vagina while she is suffering from a yeast infection. yours ears will resemble bread (due to the califlower effect) and your head will be covered in butter.
"i just got a peanut butter sandwich from my wife."
by steve cameron April 03, 2008
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