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When one drops a large dump and it goes down the toilet pipe. When the person stands up and looks down, there is nothing in the toilet bowl.
Mark: "Wow Lisa, I couldn't believe it. I dropped the fat kid off at the pool and nothing was there."

Lisa: "Sounds like you had another phantom poop dear."

Mark: "Sweet. Let's have teh sex nao."
by Boozle November 26, 2008
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2
A massive poop is taken. On one wipe, the toilet paper shows no poop residue on it. Henceforth, the poop is phantom.
I could not believe I just took a phantom poop. It was like I didn't even go the paper was so clean!!!
by TeamTrox March 09, 2006
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3
(noun) A bowel movement that cannot be seen in the toilet after the depositer gets up from making it. This is especially accurate if wiping afterward produces no residue on toilet tissue and there is no discernible odor of feces."
"I know I dropped a (log), but it was a phantom poop. I didn't even need the Febreze in there."
by Gottabethegravy November 02, 2018
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4
When you’re sitting on the toilet for 10 minutes thinking that you’re pooping but you were actually farting the whole time
β€œShit dude, I just took a phantom poop”
by WhatAreEggs May 28, 2018
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