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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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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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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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