Top Definition
N: mythical substance not yet discovered by mankind,
theories have determined it could be the source of rainbows
"Dude, I'm pretty sure girlpoop doesnt exist. Girls just don't poop."

"Yea but if they did, I bet they would poop rainbows."
by theninjabredman June 16, 2009
5 Words related to Girlpoop

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