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The Foreign Exchange is where a male ejaculates in a females mouth then she spits the seman back into the males anus
"Dude Stacey is so crazy, we did the Foreign Exchange"
by https://kidshelpline.com.au October 15, 2017
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Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
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