A shit which leaves behind no trace. When you wipe your arse you find that it's clean, and when you look in the toilet nothing is there. You're left wondering if you actually had a shit.
- I had a shit perfecto this morning. My arse was as clean as a polished sixpence.
- That's nothing. I had a phantom shit perfecto earlier. I didn't even have to flush.

- In heaven, every shit is a shit perfecto.
by greenlectern September 1, 2010
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