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The remnant 'juice' left behind from a woman who's been on their period. Seen most often in a restroom on a toilet. Repulsive to most.
"Kaitlin! Get your period juice off the toilet!"

Dov's favorite drink is period juice.
by Kyle Bryan November 13, 2007
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2
The red bloody mess that gushes from a woman's vagina during her period.
Oh shit I just got period juice all over your dog!
by anonymous December 02, 2004
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