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The act of a woman menstrating. The jungle being the womans pubic hair covered vagina. The Japanese being the red spot of blood on the underwear due to the fact that the Japanese flag is a white background with a Red sun/circle on it.
I was eating her out and the Japanese were penetrating the jungle.

What duh fizuck! Get off muh lap, yo japanese be penetratin' yo jungle hoe!
by Mr. Linoge March 10, 2005
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